As far as I’m concerned, it was the year 2007 which Vietnam joined the World Trade Organization.

Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

A.concerned

B.the year 2007

C.which 

D.the

* Đáp án

* Hướng dẫn giải

ĐÁP ÁN C

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