◎ 题干
Social attention should be paid ____ our earth from ____.
A.to preventing; being polluted B.to prevent; polluting
C.to prevent; being polluted D.to preventing; polluted
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Social attention should be paid ____ our earth from ____.A.to preventing; being pollutedB.to prevent; pollutingC.to prevent; being pollutedD.to preventing; …”主要考查了你对  【现在分词的被动式】【现在分词】【不定式的被动式】【过去分词】  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。