问题
选择题
The old man lives _____ the _____ floor. I often go there to look after him.[ ]
A. in; two
B. on; second
C. to; second
答案
答案：B
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The old man lives _____ the _____ floor. I often go there to look after him.[ ]
A. in; two
B. on; second
C. to; second
答案：B