It is nearly 3 months ______ he visited his parents. while during since when

Câu hỏi :

It is nearly 3 months ______ he visited his parents.

A. while

B. during

C. since

D. when

* Đáp án

C

* Hướng dẫn giải

Ta có cấu trúc: It is + khoảng thời gian + SINCE + mệnh đề thì quá khứ. ( Đã là .... kể từ khi .... )

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