“I took an exam this morning. It was really hard.” “ ------------- a lot before you took it?"

Câu hỏi :

“I took an exam this morning. It was really hard.” “ ------------- a lot before you took it?"

A. Have you studied

B. Did you study

C. Have you study

D. Do you study

* Đáp án

B

* Hướng dẫn giải

Chọn B

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