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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1448

There are 30 classrooms ____________ our school. Mine is _____________ the second floor.

A.on; in B.in; in
C.in; on D.on; on
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Thereare30classroomsourschool.