You are supposed to be here at 9 a.m, but it is 11 a.m now.

Câu hỏi :

You are supposed to be here at 9 a.m, but it is 11 a.m now.

A. You needn’t have been here two hours ago.

B. You must have been here two hours ago.

C. You should have been here two hours ago.

D. You oughtn’t to have been here two hours ago.

* Đáp án

* Hướng dẫn giải

B

Kiến thức : Động từ khuyết thiếu .

-be supposed to = ai đó phải làm gì

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