-------------- study hard when you were at school? C. Did you have to Trắc

Câu hỏi :

-------------- study hard when you were at school?

A. Must you

B. Had you

C. Did you have to

D. Were you

* Đáp án

C

* Hướng dẫn giải

Câu C tương ứng với thì quá khứ trong câu và hợp nghĩa hơn.

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