I have never dived in a twenty-metre-deep lake before, so I’m a bit afraid of doing it.

Câu hỏi :

I have never dived in a twenty-metre-deep lake before, so I’m a bit afraid of doing it.

A in 

B before 

C  a bit 

D of doing

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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