Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

A. No, thanks.

B. Of course you can.

C. I'm afraid not.

D. Certainly, sir.

* Đáp án

D

* Hướng dẫn giải

Đáp án D

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