What will happen if smog stays close to the ground ?

Câu hỏi :

Read the text carefully, then choose the most suitable answers.

A. It will disappear in a shot time

B. It will make the sky cleaner.

C. It will harm our health and block our sight.

D. It will cause many storms.

* Đáp án

* Hướng dẫn giải

Đáp án

C

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