◎ 题干
He has given me so much help that I really want to do something for him ______.
A.in turn B.by turns
C.in return D.in answer.
◎ 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“ He has given me so much help that I really want to do something for him ______.A.in turnB.by turnsC.in returnD.in answer.…”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。