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    It was______ back home after the experiment.

    A. not until midnight did he goB. until midnight that he didn’t go

    C. not until midnight that he wentD. until midnight when he didn’t go

     

    C

    【解析】

    试题分析：考查强调句型。句意：直到半夜，他才做完实验回到家里。It is/was...that强调not...until句型时，not until要连在一起，排除B、D；A项缺少that，排除A，故选C。

    考点：考查强调句型

     

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