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Câu hỏi:
The boys we met on the train ______ soldiers on leave. They were young, with very short haircuts.
- A. had to be
- B. could be
- C. may be
- D. may have been
Lời giải tham khảo:
Đáp án đúng: B
Kiến thức: Động từ khuyết thiếu
Giải thích:
could +V: đã có thể; chỉ khả năng/ năng lực trong quá khứ
may + V: có thể; chỉ khả năng xảy ra sự việc ở hiện tại, sự xin phép
had to + V: đã phải (điều bắt buộc ở quá khứ)
may have P2: có thể là đã (khả năng sự việc đáng lẽ đã có thể xảy ra trong quá khứ)
Tạm dịch: Các chàng trai chúng tôi đã gặp trên tàu có lẽ là lính nghỉ phép. Họ còn trẻ, với mái tóc rất ngắn.
Chọn B
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