◎ 题干
It’s very kind _____you to help me with my lessons. It is hard ____ me to learn them well .
A.of, forB.of, ofC.for, ofD.for, for
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It’s very kind _____you to help me with my lessons. It is hard ____ me to learn them well .A.of, forB.of, ofC.for, ofD.for, for…”主要考查了你对  【介词短语】【介词】  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。