The teaching building has five floors. My classroom is the third floor.A. onB. inC. atD.

发布时间：2020-08-20 08:17:22

The teaching building has five floors. My classroom is      the third floor.
A. on
B. in
C. at
D. to

网友回答

(答案→)A. on
B. in
C. at
D. to
解析：考查介词。句意“教学楼有五层，我的教室在第三层。”在第......层，用介词on。故选A。
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