◎ 题干
My uncle from Hongkong has changed so much that I could hardly ________ him at the airport.
A.understand B.realize
C.recognize D.know
◎ 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“ My uncle from Hongkong has changed so much that I could hardly ________ him at the airport. A.understandB.realizeC.recognizeD.know…”主要考查了你对  【过去完成时】【过去完成时的被动语态】  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。