◎ 题干
You're sure _____ if you do it that way.

A. to fail
B. failing
C. failed
D. of fail
◎ 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“You're sure _____ if you do it that way. [ ]A. to fail B. failing C. failed D. of fail …”主要考查了你对  【不定式】  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。