Toxic chemicals in the air and land, contaminated water and increased water temperatures have also driven many spices to the verge _________ extinction.  

Câu hỏi :

Toxic chemicals in the air and land, contaminated water and increased water temperatures have also driven many spices to the verge _________ extinction.  

A for  

B in

C to

D of

* Đáp án

D

* Hướng dẫn giải

Phương pháp giải:

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