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    精英家教网 > 高中英语 > 题目详情

    You cannot take back your words _________ they are out of your mouth.

    A. beforeB. whetherC. onceD. while

     

    C

    【解析】

    试题分析：考查连词辨析。句意：一旦话已出口，你不能收回你说的话。Take back 收回。they are out of your mouth是主句的假设条件，故选C项。

    考点 : 考查连词辨析

     

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