He _____ to give up smoking since last week. C. has tried Trắc nghiệm môn Ngữ

Câu hỏi :

He _____ to give up smoking since last week.

A. was trying

B. have tried

C. has tried

D. tried

* Đáp án

C

* Hướng dẫn giải

"since": dấu hiệu nhận biết của thì HTHT

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