◎ 题干
If he _______ harder, he will catch up with us soon.

A. study
B. studies
C. will study
D. studied
◎ 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“If he _______ harder, he will catch up with us soon. [ ]A. study B. studies C. will study D. studied…”主要考查了你对  【一般现在时】【主谓一致】  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。