We have been cooking for the party for four hours.

Câu hỏi :

We have been cooking for the party for four hours.

A. We didn’t start cooking for the party until four.

B. We started cooking for the party four hours ago.

C. We have four cooks for the party.

D. Cooking for the party will be done in four hours.

* Đáp án

B

* Hướng dẫn giải

Đáp án là B

Kiến thức: tense transformation

Sử dụng công thức sau đây:

S + have/has + Ved/3 / have/has + been + V-ing…….  ……………..     sincefor + time

=> S + began/ started + V-ing / To V …  in + time (May, 1990,…) / time (years, month,..) + ago       

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