He used ___________40 cigarettes a day but he doesn’t smoke any more now.

Câu hỏi :

He used ___________40 cigarettes a day but he doesn’t smoke any more now.

A. smoke

B. to smoke

C. to smoking

D. smoked

* Đáp án

B

* Hướng dẫn giải

Cấu trúc used to V

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