◎ 题干
— How long ____ you ____ in Singapore?
— For just the weekend. I'll be back next Monday morning.

A. have; stayed
B. are; staying
C. did; stay
D. do; stay
◎ 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 ____ you ____ in Singapore? — For just the weekend. I'll be back next Monday morning. [ ]A. have; stayed B. are; staying C. did; stay D. do;…”主要考查了你对  【现在进行时】  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。