There are (A) many researches show (B) that various species of (C) animals have been extinct. (D)

Câu hỏi :

There are (A) many researches show (B) that various species of (C) animals have been extinct. (D)

A are

B show

C of

D have been extinct

* Đáp án

B

* Hướng dẫn giải

Phương pháp giải:

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