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    精英家教网 > 高中英语 > 题目详情
    Be careful when you cross this busy street. ________, you may get run over by a car. 
    A．If notB．If soC．If any D．If possible
    A

    试题分析：考查省略。句意：当你穿过这条繁忙的街道时要小心。如果不小心的话，你可能会被汽车撞到。当if从句的主语跟主句主语一致，且谓语是be的某种形式时，if从句常省略主语和be动词。这里的if not相当于if you are not，故选A。
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