---Thecarsgiveoffagreatdealofwastegasinthestreets.---Yes.ButI'ms

发布时间：2020-08-06 11:57:46

---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.A.reduceB.removeC.collectD.warm

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A解析reduce:减少、缩减；remove：移动、搬开；collect：收集、集中；warn：警告。
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