◎ 题干
He found _______ very difficult _______ learn math well.

A. it; for
B. /; go
C. that; for
D. it; to
◎ 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“He found _______ very difficult _______ learn math well. [ ]A. it; for B. /; go C. that; for D. it; to …”主要考查了你对  【不定式】【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。