It was very kind_________ you to give up so much of time to help me.

Câu hỏi :

It was very kind_________ you to give up so much of time to help me.

A. about

B. for

C. to

D. of

* Đáp án

D

* Hướng dẫn giải

Chọn D

Cấu trúc cố định: It was very kind of you to sth

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