◎ 题干
Our English teacher devoted all her time she had ______ others.

[     ]

A. helped
B. helping
C. to help
D. to helping
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Our English teacher devoted all her time she had______ others. [ ]A. helped B. helping C. to help D. to helping …”主要考查了你对  【动词短语】  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。