There was ________ to prevent the accident. It happened while everyone was sleeping. 

Câu hỏi :

There was ________ to prevent the accident. It happened while everyone was sleeping. 

A nothing we couldn’t do 

B anything we could do

C nothing we could do

D something could do

* Đáp án

C

* Hướng dẫn giải

Phương pháp giải:

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