—The cars give off a great deal of waste gas in the streets. —Yes. But I’m sure something will be done to______air pollution.

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问题 —The cars give off a great deal of waste gas in the streets. —Yes. But I’m sure something will be done to______air pollution.

选项 A、reduce
B、remove
C、collect
D、warn

答案A

解析本句意为：一汽车在路上排放很多废气。一是的。但是我相信(人们)会采取措施减少空气污染的。reduce“减少”；remove“去除”；collect“收集”；warn“警告”。根据句意，选A。

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