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People are worrying___the pollution of the air. A.in B.with C.for D.about 填哪个,为什么?

分类: 作业答案 • 2021-12-17 20:05:37

问题描述：

People are worrying___the pollution of the air. A.in B.with C.for D.about 填哪个,为什么?

答

D
跟 be worried about 一样
空气污染使人们担心··