◎ 题干
—When did you go to bed last night?  
—I didn't go to bed _____ my father got home.  
[     ]
A. until    
B. while  
C. after
◎ 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“--When did you go to bed last night? --I didn't go to bed _____my father got home.[ ]A. untilB. while C. after…”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。