◎ 题干
The top student failed again in the examination and only then ______ the importance of reading and memorizing the English texts.
A.he realized B.he had realized C.had he realized D.did he realize
◎ 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“The top student failed again in the examination and only then ______ the importance of reading and memorizing the English texts.A.he realizedB.he had realizedC.…”主要考查了你对  【全部倒装】【部分倒装】【省略句】  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。