Tom ____ so careless if hed known what would happen.

Câu hỏi :

Tom ____ so careless if he'd known what would happen.

A. would have been

B. wouldn't have been

C. would be

D. wouldn't be

* Đáp án

B

* Hướng dẫn giải

Câu điều kiện loại 3:  [If + thì quá khứ hoàn thành],  [would + have + V3/V-ed]

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