题目内容
2.You cannot take back your words _______ they are out of your mouth.( )A. | before | B. | whether | C. | once | D. | while |
分析 一旦话从你的嘴里说出,就不能收回了.
解答 答案 C
before在…之前;whether是否;once一旦;while然而,根据前半句:你不能收回你的话,可知是一旦说出来,故选C.
点评 本题考查从属连词的辨析,做题时要根据句意,结合所给选项,选择最适合主从句关系的选项.
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