◎ 题干
—  How long do you suppose it is _____ he arrived here?
— No more than half a week.
[     ]
A. since
B. before
C. after
D. when
◎ 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“— How long do you suppose it is _____ he arrived here? — No more than half a week.[ ]A. since B. before C. after D. when …”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。