Toxic chemicals in the air and land, contaminated water and increased water temperatures have

Câu hỏi :

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

A. for

B. in

C. to

D. of

* Đáp án

D

* Hướng dẫn giải

Chọn D

“on (to) the verge of st”: sắp, suýt, gần

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