◎ 题干
— I still haven't decided whether to go or not.    
— But your time is running out. Please make up your mind ______ it is too late.
[     ]
A. when    
B. since    
C. until    
D. before
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— I still haven't decided whether to go or not.— But your time is running out. Please make up your mind ______ it is too late.[ ]A. whenB. sinceC. untilD.…”主要考查了你对  【从属连词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。