Most of the wastes from factories are ________ They are ________ our environment. A. poisonous / poisoning B. poison / poisoned C. poisonously / poisoned D. poisons / poisoner

Most of the wastes from factories are ________ They are ________ our environment.

A. poisonous / poisoning           
B. poison / poisoned
C. poisonously / poisoned     
D. poisons / poisoner

Trả lời

Chọn đáp án A

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