◎ 题干
—Why didn't you try your best to get on the bus?
—I tried to, but ________ I could, it started moving.
[     ]
A. until  
B. when  
C. before    
D. 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“—Why didn't you try your best to get on the bus?—I tried to, but ________ I could, it started moving.[ ]A. untilB. whenC. beforeD. 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。