The study also shows that having discussions with people (4)______ they have never met beforethrough social networks such as Facebook, Zalo is one of the most addictive activities....

Câu hỏi :

The study also shows that having discussions with people (4)______ they have never met beforethrough social networks such as Facebook, Zalo is one of the most addictive activities.

A. whom                    

B. which                       

C. where                         

D. when

* Đáp án

* Hướng dẫn giải

Chọn đáp án A.

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