In recent years (A) great advances forward (B) have (C) been made in the field of genetic research.(D)

Câu hỏi :

In recent years (A) great advances forward (B) have (C) been made in the field of genetic research.(D)

A In recent years

B forward

C have

D genetic research

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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