The explorers said that (A) they could make (B) the round trip shorter if (C) the weather had not been th...

Câu hỏi :

The explorers said that (A) they could make (B) the round trip shorter if (C) the weather had not been that bad (D)

A said that 

B could make

C if 

D that bad 

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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