◎ 题干
The plan he devoted three months to _____ at last.

A. failing
B. fail
C. failed
D. has failed
◎ 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“The plan he devoted three months to _____ at last. [ ]A. failing B. fail C. failed D. has failed …”主要考查了你对  【一般过去时】  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。