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Students will not be allowed into the exam room if they ______ their student cards.
- A. didn’t produce
- B. don’t produce
- C. produced
- D. hadn’t produced
trả lời câu hỏi trước khi xem đáp án bên dướiYOMEDIACâu 1 Đáp án đúng: B
Đáp án đúng là B.
Giải thích: Chỗ trống cần điền là động từ chính nằm trong mệnh đề "if" của câu điều kiện loại 1 nên phải dùng thì hiện tại đơn. Đáp án B là hợp lí nhất.
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CÂU HỎI KHÁC VỀ MỆNH ĐỀ VÀ CÂU
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- ______ at school yesterday when we were informed that there was no class due to a sudden power cut
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- Something __________ happened or they would be here by now
- I'm________a swimmer as my sister
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- ________are a form of carbon has been known since the late eighteenth century.
- One of the tenets of New Criticism is that a critic need not tell readers ________ about a story
- Such _______that the firefighters could not get near it.