题目内容
5.I will go on with the experiment unless my mother _____ me to stop.( )| A. | will ask | B. | asks | C. | asked | D. | has asked |
分析 除非我的妈妈要求我停止,否则我将继续这项实验.
解答 答案:B 根据unless引导条件状语从句,主将从现,可知从句用一般现在时,并且my mother用单三,故选B
点评 总结条件状语从句,如unless,if,as soon as引导的条件状语从句,主将从现.
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