◎ 题干
By the time he arrived in Beijing, we _____ there for two days.

A. will have stayed
B. stay
C. have been staying
D. had stayed
◎ 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“By the time he arrived in Beijing, we _____ there for two days. [ ]A. will have stayed B. stay C. have been stayingD. had stayed …”主要考查了你对  【过去完成时】  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。