Câu hỏi :

Choose the best sentence - a, b, c, or d – made from the given cues.

A. If you don't help me, I couldn't meet her last week. 

B. If you' didn't help me, I couldn't meet her last week. 

C. If you hadn't helped me, I couldn't meet her last week. 

D. If you hadn't helped me, I couldn't have met her last week.

* Đáp án

* Hướng dẫn giải

Đáp án: D

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