是in the fifth floor还是on the fifth floor

是in the fifth floor还是on the fifth floor on the fifth floor,还是in the fifth floor? 是on fifth floor还是on the fifth floor? Sam lives on the fifth floor in this building?对the fifth floor提问 Sam lives on the fifth floor in this building?对the fifth floor提问 The fifth floor ,Room5A是什么意思 on the fifth floor还是on fifth floor The restaurant is on the fifth floor (对fifth提问)对the fifth floor提问是Which floor is the restaurant on？但是是对fifth提问并不是Which floor is the restaurant on？ 5th Floor No.8 Building是这么念吗?“the fifth floor. i liveon the fifth floor.对the fifth 提问 Mr Green lives in a three-bed room on the fifth floor.怎么译? which floor?翻译the fifth floor 6a.翻译 which floor?翻译the fifth floor 6a.翻译 hans lives on the fifth floor._______ ______floor______hans live是改特殊意问句 I live ___ the fifth floor ____this building.A.in.on B.in of C. on of D.on,from 英语翻译是I study in the fifth middle schoo还是I study in fifth middle school Sam lives on thefifth floor in this building.划在the fifth floor上（ ） ( )does Sam live on in this building? I live ( )the fifth floor,Room 5 A A on B in C at 请选择,并说原因.