George wouldn't have met Mary _______ to his brother's graduation party

Câu hỏi :

George wouldn't have met Mary _______ to his brother's graduation party.

A. had he not gone 

B. hadn't he gone         

C. if he has not gone 

D. if he shouldn't have gone

* Đáp án

* Hướng dẫn giải

Đáp án là A

Đảo ngữ của câu điều kiện: Had + S ( + not ) + PII, S + would + have + PII.

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