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— If there are ____ trees, the air will be cleaner.

— I agree. Then there will be less pollution.

A. much   B. less    C. fewer             D. more

 

【答案】

D

【解析】此题重点考查四个单词的含义,根据语境可知要选择比较级,故用more表示有更多的树,空气就会越清新。污染就会越少。

 

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