问题描述：
1. I like walking on the street when it is __rainy____ (rain)
2. ( c)Our teacher lives in a tall building____twenty floors.
A.over .B.on C.in
有没有朋友知道为什么? 谢谢
2. ( c)Our teacher lives in a tall building____twenty floors.
A.over .B.on C.in
有没有朋友知道为什么? 谢谢
问题解答：
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