问题

You look so worried, what’s wrong -More andmore people like me begin to worry about the ______ pollution after the haze (雾霾) appeared in Beijing and some other cities in China.

A:water
B:eijing and some other cities in
C:noise
D:Soil

正确答案是：

同类题型

you understand it, it’s easy for youto obey it

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