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Câu hỏi:
(8) ................
- A. of
- B. on
- C. for
- D. in
Lời giải tham khảo:
Đáp án đúng: B
Kiến thức: Giới từ
Giải thích:
concentrate on sth: tập trung vào cái gì
Can you really concentrate (8) on two things at once?
Tạm dịch: Bạn có thể thực sự tập trung vào hai việc cùng một lúc không?
Câu hỏi này thuộc đề thi trắc nghiệm dưới đây, bấm vào Bắt đầu thi để làm toàn bài
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