问题:
【题文】There are 30 classrooms ____________ our school. Mine is _____________ the second floor.
A.on; in
B.in; in
C.in; on
D.on; on
【题文】There are 30 classrooms ____________ our school. Mine is _____________ the second floor.
A.on; in | B.in; in |
C.in; on | D.on; on |
参考答案: