单项选择：The teaching building has five floors.My classroom is _____t_英语解答

单项选择：The teaching building has five floors.My classroom is _____the third floor.A.on B.in
C.at D.to

人气：190 ℃　时间：2020-01-29 00:08:31

解答

A
on the .floor（在……楼）固定搭配
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