It was ________ back home after the experiment.A.not until midnight did he goB.until midnight that he didn't goC.until midnight when he didn't goD.not until midnight that he went
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D解析句意：直到半夜他才做完实验回家。本句考查强调句型，变为普通的句子后为：He didn't go back home after experiment until midnight.本句还可用倒装形式，即：Not until midnight did he go back home after experiment.