Bộ 5 đề thi HK1 môn Tiếng Anh 9 năm 2021-2022 có đáp án Trường THCS Ngọc Châu có đáp án kèm theo, được HOC247 sưu tầm và đăng tải sẽ giúp các em học sinh lớp 9 luyện tập và củng cố kiến thức môn Tiếng Anh 9 trong chương trình học kì 1. Hi vọng đây là tài liệu hữu ích cho các em trong quá trình học tập và ôn thi. Chúc các em thi tốt!
TRƯỜNG THCS NGỌC CHÂU |
ĐỀ THI HỌC KÌ 1 NĂM HỌC 2021 - 2022 Môn: TIẾNG ANH 9 Thời gian: 45 phút |
1. Đề số 1
I. Pronunciation
1. Choose the word that has the underlined part pronounced differently from that of the others (1 point)
1. A. talk B. call C. walk D. hard
2. A. asked B. enjoyed C. studied D. replied
3. A. get B. check C. Internet D. modern
4. A. cut B. dump C. pollute D. fun
2. Choose the word whose main stress is not the same as that of the others. (1point)
1. A. delicious B. wonderful C. interview D. modern
2. A. institute B. national C. experience D. favorite
3. A. scenery B. campus C. expensive D. opposite
4. A. occasion B. entertainment C. invention D. communicate
II. Language & Vocabulary
1. Choose the best answer by circling the letters A, B, C or D (2 points)
1. I wish I ................ my parents this time.
A. visit B. visits C. can visit D. could visit
2. Lan enjoys watching TV after dinner, .................?
A. does she B. doesn't she C. did she D. didn't she
3. You should ......... a lot of grammar exercises if you want to improve your writing.
A. did B. doing C. do D. does
4. If the teacher .................... us some homework, we have to stay home and do it.
A. gives B. give C. will give D. gave
5. In 1886, Levi sewed a leather label ............. their jeans.
A. in B. on C. above D. to
6. How long ............ the students ......... that famous teacher? – For 10 years.
A. have/ known B. has/ known C. know D. knew
7. She used to ............... a letter to her parents every week last year.
A. wrote B. writes C. write D. has written
8. A tourist asked me ................... it was from Ho Chi Minh city to Vung Tau.
A. When B. How C. What D. How far
2. Match the questions in column A with the answers in column B (1 point)
A |
B |
1. How can you get to Hoa's village? |
a. She works for a bank in Hanoi. |
2. What are the boys doing? |
b. Yes, I do. |
3. Where does Linh work for? |
c. By coach |
4. Do you enjoy listening to music? |
d. For five years |
5. How long have you studied English? |
e. They are playing soccer. |
3. Give the correct form of the verbs in brackets (1 point)
1. He wishes he (get).............. a chance to meet that famous singer.
2. If you are in London now, you should (drive)................ on the left side.
3. Lan (borrow).............. some books from the library since Monday.
4. She might (require)............. to take a short rest.
III. Reading
Read the text and do the following exercises.
Vietnam is one of the countries of ASEAN. It has an area of 331,212 square km. Vietnam enjoys humid subtropical climate warming in the north, tropical monsoon climate in the north central, tropical savanna in the south and south central. The Vietnamese unit of currency is dong.
The capital of Vietnam is Hanoi. However, Ho Chi Minh city is the largest city in the country. The population in 2014 was over 90 million. At present, Vietnam has 06 major religions: Buddhism, Catholicism, Christianity, Islam, Cao Dai, Hoa Hao. The national language is Vietnamese. English is also widely spoken in Vietnam.
1. Choose True (T) or false (F). (1 point)
Statements |
True |
False |
1. Vietnam is a member country of ASEAN. |
||
2. There are two major religions in Vietnam. |
||
3. People only speak Vietnamese in Vietnam. |
||
4. Vietnam enjoys tropical monsoon climate in the north central. |
2. Answer the questions (1 point)
1. What was Vietnam's population in 2014?
=> ................................................................................................
2. What is the climate in the south and south central?
=> ................................................................................................
3. Is Hanoi the largest city in Vietnam?
=> ................................................................................................
4. What is the national language in Vietnam?
=> ................................................................................................
IV. Writing
1. Complete the following sentences by using reported speech (1 point)
1. Huong said " My parents are very proud of my good marks".
Huong said that..............................................................................
2. Lien said to her brother " You ought to clean your room".
Lien told her brother that ..................................................................
3. Lan's parents said " We will visit you this summer".
Lan's parents said that .....................................................................
4. "How often do you wash your clothes?" Binh asked Tam.
Binh asked Tam ...........................................................................
2. Arrange the following words to make complete sentences. (1 point)
1. last/ she/ cinema/ to/ went/ night/ the.
...................................................................................................
2. hungry/ she/ hasn't/ she/ eaten/ is/ because/ day/ all.
...................................................................................................
ĐÁP ÁN ĐỀ SỐ 1
I. Pronunciation
1. (1 điểm) – Mỗi câu đúng được 0,25 điểm.
1. D 2. A 3. D 4. C
2. (1 điểm)- Mỗi câu đúng được 0,25 điểm.
1. A 2. C 3. C 4. B
II. Language & Vocabulary
1. (2 điểm) – Mỗi câu đúng được 0,25 điểm.
1. D 2. B 3. C 4. A
5. B 6. A 7. C 8. D
2. (1 điểm) – Mỗi câu đúng được 0,2 điểm.
1. c 2. e 3. a 4. b 5. d
3. (1 điểm) – Mỗi câu đúng được 0,25 điểm.
1. got 2. drive 3. has borrowed 4. be required
III. Reading
1. (1 điểm)- Mỗi câu đúng được 0,25 điểm.
1. T 2. F 3. F 4. T
2. (1 điểm) – Mỗi câu đúng được 0,25 điểm.
1. Over 90 million.
2. tropical savanna in the south and south central.
3. No, it isn't.
4. Vietnamese
IV. Writing
1. (1 điểm) – Mỗi câu đúng được 0,25 điểm.
1. Huong said that her parents were very proud of her good marks.
2. Lien told her brother that he ought to clean his room.
3. Lan's parents said that they would visit her that summer.
4. Binh asked Tam how often he washed his clothes.
2. (1 điểm)- Mỗi câu đúng được 0,5 điểm.
1. She went to the cinema last night.
2. She is hungry because she hasn't eaten all day.
2. Đề số 2
ĐỀ THI HỌC KÌ 1 MÔN TIẾNG ANH 9- TRƯỜNG THCS NGỌC CHÂU- ĐỀ 02
A. LISTENING
I. Mrs Lien is talking about a new bookstore in her hometown. Listen and decide whether the following statements are True (T) or False (F). (2.5 pts)
1. A new bookstore has just been built.
2. There are not many kinds of books there.
3. The assistants don't help us much.
4. The children can spend their whole day in the bookstore.
5. We all love the bookstore.
B. VOCABULARY + GRAMMAR + LANGUAGE FUNCTION
I. Choose the word that has the underlined part pronounced differently. (0.5 pt)
1. A. remembered B. warned C. opened D. wanted
2. A. health B. appear C. ready D. heavy
3. A. internet B. information C. violent D. opinion
4. A. return B. number C. summer D. product
5. A. campus B. examination C. reputation D. lamp
II. Choose the best option marked A, B, C or D to complete each sentence. (2.0 pt)
1. Math and Literature are _________ subjects in high schools.
A. optional B. religious C. compulsory D. impressive
2. It's was hot, _________ I turned on the conditioner.
A. however B. but C. because D. so
3. The questions were very difficult, _________?
A. weren't they B. were they C. did they D. didn't they
4. They planned to have a trip _________ 2009
A. to B. in C. on D. from
5. They have many well-_________ teachers there.
A. qualify B. qualification C. quality D. qualified
6. I have known her _________ I came to Hue.
A. since B. when C. while D. until
7. This monument _________ in the 17th century.
A. is built B. was built C. has built D. has been built
8. If you want to attend at the course, you _________ pass the oral examination.
A. had to B. could C. have to D. has to
C. READING
I. Read the passage carefully then decide whether the following statements are true (T) or false (F). (1.0 pt)
I live in a small village called Henfield. There are about 500 people here. The village is quiet and life here is slow and easy. People never throw their rubbish in the streets, so the village is always clean. The air is also very clean because there's not much heavy traffic. It's much more friendly here than in a city. Everyone knows everyone and if someone has a problem, there are always people who can help. However, there are some things I don't like about Henfield. But I still prefer village life to life in a big city.
1. There are about 500 people in Henfield village.
2. The air isn't clean because there is no traffic here.
3. The villagers are friendly and helpful.
4. He likes living in a big city.
II. Read the passage carefully then answer the questions below. (1.5 pts)
Television is one of man's most important means of communication in millions of homes. Through television, home viewers can see and learn about people, places and things in faraway lands. Television provides many more entertainments than any other kinds. The programs include dramas, comedies, sporting events and movies.
I like contests best. In some contests, TV viewers can join in and answer questions through telephone or by mail.
* Questions:
1. What is one of man's most important means of communication?
..........................................................................
2. What does he like best ?
.........................................................................
3. How can TV viewers answer questions in some contests?
.........................................................................
D. WRITING
I. Complete the second sentence so that it has a similar meaning to the first one. (1.5 pts)
1. "Do you love music? " she asked.
She asked me ..................................................
2. I last wrote to my older brother 2 months ago.
I haven't ..........................................................
3.People use the Internet all over the world nowadays.
The Internet ....................................................
II. Complete sentences from the words given. (1.0 pt)
1. Hoa / wish / she / can visit / parents.
....................................................................
2. My mother / like / watch / folk music / news / VTV1 channel.
....................................................................
ĐÁP ÁN ĐỀ SỐ 2
A. LISTENING: (Tỉ lệ 25%)
I. Listen to the talk and decide whether the following statements are True (T) or False (F). (5 items x 0.5 = 2.5 pts)
1. T 2. F 3. F 4. T 5. T
B. VOCABULARY + GRAMMAR + LANGUAGE FUNCTION (Tỉ lệ 25%)
I. Choose the word that has the underlined part pronounced differently. (5 items x 0.1 = 0.5 pt)
1. D 2. B 3. C 4. A 5. C
II. Choose the best option marked A, B, C or D to complete each sentence. (8 items x 0.25 = 2.0 pt)
1. C 2. D 3. A 4. B
5. D 6. A 7. B 8. C
C. READING (Tỉ lệ 25%)
I. Read the passage carefully then decide whether the following statements are true (T) or false (F). (1.0 pt) (4 items x 0.25 = 1.0 pt)
1. T 2. F 3. T 4. F
II. Read the passage carefully then answer the questions below. (3 items x 0.5 = 1.5 pts)
1. Television is one of man's most important means of communication (in millions of homes).
2. He likes contests best.
3. TV viewers/ They can join in and answer questions through telephone or by mail .
D. WRITING (Tỉ lệ 25%)
I. Complete the second sentence so that it has a similar meaning to the first one. (3 items x 0.5 = 1.5 pts)
1. She asked me if/ whether I loved music.
2. I haven't written to my older brother for two months.
3. The Internet is used all over the world nowadays.
II. Rearrange the jumbled words to make meaningful sentences. (2 items x 0.5 = 1.0 pt)
1. Hoa wishes she could visit her parents.
2. My mother likes watching folk music and news on VTV1 channel.
3. Đề số 3
ĐỀ THI HỌC KÌ 1 MÔN TIẾNG ANH 9- TRƯỜNG THCS NGỌC CHÂU- ĐỀ 03
I. LANGUAGE FOCUS
A. Circle the correct answers to complete the sentences: (2.0 points)
1. She has a lovely cat, ............? (doesn't it/ doesn't she/hasn't she /does she)
2. There is a meeting ............ 9 a.m and 2 p.m (on /between /till/ at)
3. Huy enjoys ......... to the park on summer evening. (goes/ go/ going / to be gone)
4. I haven't seen him ............ two years. (for / before / since /after)
5. Mary used............ to me last year. ( to writing / write / to write / written)
6. Long wishes he ...... have to clean all the windows. (wasn't/ isn't/doesn't/didn't)
7. Millions of Christmas cards ...... last month. (are sent / sent / send / were sent)
8. I was born ....... January 3rd ..... 1986. (on- in / in- on / between-to / on- at)
B. Rewrite the sentence below: (1point)
1. They grow rice in tropical countries.
-> Rice ..........................................................................................
2. I don't have a computer at home.
-> I wish ..........................................................................................
2. "Why do you come here late?" She asked me.
-> She asked me ..........................................................................................
4. Practice speaking English every day or you can't improve your English.
-> If ..........................................................................................
II. READING:
A. Complete the passage. Use the words in the box: (1point)
walked blanket fishing beautiful beautifully
It was a (1)...........day, my friends and I decided to go on a picnic. We took a bus to the countryside and then (2)............about 20 minutes to the picnic site next to the river. We put down the (3)..............and laid out the food. After meal we play games. Late in the afternoon we went (4)................. We enjoyed our picnic very much
B. Read the passage and then answer the questions: (2points)
The Internet has rapidly developed and become part of our daily life. It's a very fast and convenient way to get information. People use the Internet for many purposes: education, communication, entertainment and business. The Internet helps people communicate with friends and relatives by means of e-mail or chatting.
However, the Internet has limitations. It is time- consuming and costly. It is also dangerous because of viruses and bad programs. On the other hand, the Internet users sometimes have to suffer various risks such as spam or electronic junk mail, and personal information leaking. So, while enjoying surfing, be alert!
Questions:
1. How has the Internet developed?
->..........................................................................................
2. Why do people use the Internet?
-> ..........................................................................................
3. How do people communicate with friends and relatives?
->..........................................................................................
4. Does the Internet have limitation?
->..........................................................................................
VI. WRITING
Use these suggested words to write a letter (2points)
1. I/ see/ Institute's advertisement/ TV/ yesterday.
2. I/ be / interested/ learn/ English.
3. I/ like/ information/ your Institute.
4. I/ study/ English/ over four years /and / speak/ a little English.
5. I/ want/ improve/ reading / writing /skill.
6. Could you please/ send / details/ courses / fees?
7. I/ complete/ English test/ necessary.
8. I/ look forward/ hear/ from you.
Dear Sir,
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
....................................................................................................................................
Yours faithfully,
ĐÁP ÁN ĐỀ SỐ 3
I. A
1. B 2. B 3. C 4. A
5. C 6. D 7. D 8. A
I. B
1. Rice is grown in the tropical countries.
2. I wish I had a computer at home.
3. She asked me why I came there late.
4. If you practice speaking English every day, you can improve your English.
II. A
1. beautiful 2. walked 3. blanket 4. fishing
II. B
1. The Internet has rapidly developed.
2. Because It is very fast and convenient way to get information.
3. People communicate with friends and relatives by means of e-mail or chatting.
4. Yes, it does.
III.
1. I saw your Institute's advertisement on TV yesterday.
2. I am interested in learning English.
3. I would like some information about your Institute.
4. I have studied English for over four years and I can speak a little English.
5. I want to improve my reading and writing skills.
6. Could you please send me details of courses and fees?
7. I can complete an English test if necessary.
8. I am looking / look forward to hearing from you.
4. Đề số 4
ĐỀ THI HỌC KÌ 1 MÔN TIẾNG ANH 9- TRƯỜNG THCS NGỌC CHÂU- ĐỀ 04
I /. Multiple choice (3ms
1. Which is pronounced differently?
a. A. religion B. design C. secondary D. region
b. A. wanted B. liked C. visited D. needed
2. They will go to Dalat ......................December. (in / on / at / for)
3. It rains heavily .............. we can't go on a picnic by the river bank. (because/ and /if / so)
4. Minh will get well soon .............. he takes some medicine. (but / so/ because/ if)
5. Thu wants to ........................her English. Can you help her? (take / give / improve/ attend)
6. This small dictionary ...............8,000 words. (makes / uses / comprises / consist)
7. You should learn all the new words by ..................... (mouth/ ear/ memory heart)
8. You had a wonderful time in Nha Trang, .................. (haven't you? / didn't you?/ aren't you ? / won't you?)
9. Ha's father ........................in the factory for 10 years. (work/ worked / working/ has worked)
10. Mai has been a warded a scholarship to study in The USA.
- "Oh, really? .........................."
A. What a lucky girl! B. What a lucky she C. What lucky she is D. Lucky as she is
11. A. "How can we remember all these new words ?"
B. .........................................................
A. Read them I heart B. Study them in heart
C. Learn them by heart. D. Tell them by heart
II/. Choose the underlined word or phrase (A, B,C, D ) that needs correcting (0.5m)
1/. Nam used to going to school by bus. Now he goes by bike.
A B C D
2/. Tom said that he likes learning English in an evening class.
A B C D
III/. Supply the correct verb form (1.5ms)
1. I (not see).......................................... her since last week.
2. His house (repaint) ........................................... last year.
3. I (see) ....................................... your school on TV last night.
4. Nga is looking forward to (see)........................... her aunt from the home village.
5. Mai said she (love) ................................. living in the countryside.
6. She asked me if I (go).............................. to the party that evening.
IV/. Fill in the blanks (1m)
edition / aspect / improve/ religion / well-qualified / examine/ designer
1. What .............................................of learning English do you find most difficult?
2. My school has many ........................................... teachers.
3. Is Buddhism the official ....................................... in Thailand?
4. Lan wants to become a fashion ................................. when she grows- up.
V/. Read the passage and do the task below.
Now speaking foreign language is what most people want. Every year many millions of people start learning one. How do they do it? Some people try at home, with books and records of tapes; some use radio or television programmes; some use computers and network; others go to evening classes. If they use the language only 2 or 3 times a week, it will take a long time, like learning a foreign language at school. A few people try to learn the language fast by studying for 6 or more hours a day. It is clearly easier to learn the language in the country where it is spoken. However, most people cannot afford this. They need the language in order to do their work better. For example, scientists and doctors chiefly need to be able to read books and reports in the foreign language.
Write True (T) or False (F) (0.5m):
1. It is easier to learn the language in the country where it is spoken ..............
2. Scientists and doctors learn a foreign language to go abroad .............
Answer the questions (1ms):
1. Do they learn English in order to do their work better?
.......................................................................
2. Where can they learn a foreign language?
..................................................................................................................
VI/. Do as directed (1.5ms)
1. You must practise your English every day. (Rewrite sentence in Passive voice)
Your English .....................................................................................
2. What a pity ! I can't go camping with you. (Rewrite sentence, using wish sentence)
I wish...............................................................................................
3. Lan said: " I will be a teacher some day". (Rewrite sentence, using reported speech)
Lan said ..................................................................................
ĐÁP ÁN ĐỀ SỐ 4
I /. Multiple choice (3ms)
1. a. secondary b. liked
2. in
3. so
4. if
5. improve
6. comprises
7. heart
8. didn't you?
9. has worked
10. A. What a lucky girl!
11. C Learn them by heart
II/. Choose the underlined word or phrase (A, B, C, D) that needs correcting (0.5m)
1. B 2. B
III/. Supply the correct verb form (1.5ms)
1. have not seen
2. was repainted
3. saw
4. seeing
5. loved
6. went
IV/. Fill in the blanks (1m)
1. aspect
2. well – qualified
3. religion
4. designer
V/. Read the passage and do the task:
Write True (T) or False (F) (0.5m)
1. T 2. F
Answer the questions (1ms)
1. Yes, they do.
2. They can learn a foreign language at homes or in the evening classes.
VI/. Do as directed (1.5ms)
1. Your English must be practised every day.
2. I wish I could go camping with you.
3. Lan said she would be a teacher someday.
5. Đề số 5
ĐỀ THI HỌC KÌ 1 MÔN TIẾNG ANH 9- TRƯỜNG THCS NGỌC CHÂU- ĐỀ 05
SECTION A: USE OF LANGLUAGE
Part 1. Choose the word/phrase (A, B, C or D) that the fits the space in each sentences.
1. “Would you like to have tea with you?” “_______”.
A. Yes, I would
B. Yes, I’d love to
C. That’s a good idea
D. I think so.
2. My brother is a university student, but he works______ as a waiter in the evenings.
A. all the time
B. full-time
C. sometimes
D. part-time
3. My younger sister takes very good care............ her lovely cat.
A. of
B. for
C. in
D. at
4. We got our mail................... yesterday.
A. been delivered
B. delivered
C. delivering
D. to deliver
Part 2. Supply the correct form of words in parentheses
1: Finding that the film was___________, we turned off the TV. (BORE)
2: He is too busy to have much time for_______ (RELAX)
3: The book is small, but it is________ (INFORM)
4: It was an_________trip, so all of us felt tired and bored. (ENJOY)
Part 3. Choose the word (A, B, C or D) whose underlined part is pronounced differently from that of the others in the same group.
1. A. material |
B. casual |
C. flat |
D. campus |
2. A. ploughed |
B. published |
C. ordered |
D. prayed |
SECTION B: READING
Part 1. Choose the word or phrase (A, B, C or D) that best fits the blank space in the following passage
My name is Linh. Last Saturday, I visited the countryside with my friend Xuan. The place is not very far (1)______our town. We came there by bus - a journey of 3 hours. On arriving there, we went straight to the house of Xuan’s parents. They are farmers. They have lived here for three years. We drank coconut water and ate a lot of cakes. (2)_____that we went to the field to fly kites. Then we went swimming in the river near there and played games together. We enjoyed a weekend completely.
Finally, in the afternoon we (3)_______the countryside for the town. And I got home at about 6.30. We (4)_____had a lot of fun. Xuan’s parents are very kind. The countryside is wonderful to me. If we have free time, we‘ll come there again
1. A. from |
B. away |
C. to |
D. for |
2. A. After |
B. Before |
C. Them |
D. while |
3. A. came home |
B. returned |
C. left |
D. said goodbye |
4. A. however |
B. happily |
C. really |
D. very |
Part 2. Read the text carefully, and then decide whether the following statements are TRUE (T) or FALSE (F)
My best friend, Thuy learned English at school and university many years ago . She is now studying English again in London because she’s forgotten a lot of it . She really needs English for her job . She works for an international bank in Hanoi . Her speaking and reading are excellent. She just wants to improve her writing skill so that she can write normal letters in English . In Thuy’s opinion the aspect of learning English she finds most difficult is listening. It’s her biggest problem. People speak very quickly and she can’t understand them. Although she has difficulty in studying this language, she likes it a lot. She said it was an interesting language and she could talk to people from all over the world… and she could understand the words of her favorite song, too.
1.____.English is unnecessary for Thuy’s job.
2. ____Thuy can speak English very well.
3. ____Thuy finds English very interesting because she has no difficultly in studying it.
4. ____ People talk too quickly for Thuy to understand.
SECTION C: WRITING
Part 1. Complete the second sentence so that it has a similar meaning to the first one.
1. It rained hard, so we had to cancel the picnic.
Because_______________________________________________
2. She can’t have lunch with me now.
She wishes_______________________________________________
3.She asked me, “ Why are you learning English?”
She asked me_______________________________________________
Part 2. Rearrange the groups of words in a correct order to make complete sentences.
1. find/ the solution/ I / sorry / I didn’t/ am/
_______________________________________________
2. you moved here?/ How many times/ since/ have./you / meet him/
_______________________________________________
3. enjoy / to be able to communicate/ We./ learning English / with the foreigners/
_______________________________________________
ĐÁP ÁN ĐỀ SỐ 5
SECTION A: LANGUAGE USE
Part 1.
1. B; 2. D; 3. A; 4. B;
Part 2.
1. boring;
2. relaxation;
3. informative;
4. unenjoyable
Part 3.
1. A; 2. B;
SECTION B: READING
Part 1.
1. A; 2. A; 3. C; 4. C;
Part 2.
1. F; 2. T; 3. F; 4. T;
SECTION C: WRTING
Part 1.
1. Because it rained hard, we had to cancel the picnic.
2. She wishes she could have lunch with me now.
3. She asked me why I was learning English.
Part 2.
1. I am sorry I didn’t find the solution.
2. How many times have you met him since you moved here?
3. We enjoy learning English to be able to communicate with the foreigners.
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Trên đây là toàn bộ nội dung tài liệu Bộ 5 đề thi HK1 môn Tiếng Anh 9 năm 2021-2022 có đáp án Trường THCS Ngọc Châu. Để xem thêm nhiều tài liệu tham khảo hữu ích khác các em chọn chức năng xem online hoặc đăng nhập vào trang hoc247.net để tải tài liệu về máy tính.
Hy vọng tài liệu này sẽ giúp các em học sinh ôn tập tốt và đạt thành tích cao trong học tập.
Các em quan tâm có thể tham khảo tư liệu cùng chuyên mục:
- Bộ 5 đề thi HK1 môn Tiếng Anh 9 năm 2021-2022 có đáp án Trường THCS Tô Ký
- Bộ 5 đề thi HK1 môn Tiếng Anh 9 năm 2021-2022 có đáp án Trường THCS Nguyễn Thị Minh Khai
Chúc các em học tập tốt!