◎ 题干
— Paper _____ wood. We should not waste paper.
— I agree. I always use _____ sides of paper.

[     ]

A. is made of, either
B. is made from, both
C. makes of, both
D. makes from, either

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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“— Paper _____ wood. We should not waste paper. — I agree. I always use _____ sides of paper. [ ]A. is made of, either B. is made from, both C. makes of, b…”主要考查了你对  【不定代词】【被动语态】【动词短语】  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。