◎ 题干
-- 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.dropD.warn
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“-- 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.A.reduceB.removeC.dropD.warn…”主要考查了你对  【动词短语】【动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。