Mr Brown has kindly agreed to spare us some of his                                    time to answer our questions.

Câu hỏi :

Mr Brown has kindly agreed to spare us some of his                                    time to answer our questions.

A costly 

B beneficial  

C worthy   

D valuable

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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