◎ 题干
An old man lives _____ the _____ floor.

A. in;two
B. on;second
C. under;second
D. to;second
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“The old man lives _____ the _____ floor. I often go there to look after him. [ ]A.in; two B.on; second C.under; second D.to; second …”主要考查了你对  【序数词】【介词】  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。