◎ 题干
We have friends to help us fight against pollution, and trees are one of ________.
A.themselvesB.they
C.theirD.them
◎ 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“ We have friends to help us fight against pollution, and trees are one of ________.A.themselvesB.theyC.theirD.them…”主要考查了你对  【人称代词】【物主代词】【it的用法】  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。