on the third floor and the fourth floor you can find the single rooms and double rooms这里面为什么单个房间加了the,而双人房却没有加the 是the meeting rooms还是the meeting room?

My classroom is on the third floor Lives on the third floor.住几楼? “lt's on the third floor”是什么意思 they live on the third floor （）room is on the third floor and （）is on the fifth floor.A.theirs；ourB.their；ours （）room is on the third floor and （）is on the fifth floor.A.theirs；ourB.their；ours There is a bookshop on the third floor.在这个句子中,a bookshop和on the third floor分别是什么成分. The new flat is --- the third floor.-----应该填什么?A.in B.on C.at Is there a table tennis room on the third floor?Yes,it is.哪错了 We have a new flat,it's on the third floor.的中文意思是什么? 3.I am looking for a flat on the third or fourth floor.翻译 floor,the,third,on,the,is,liarbry连词成句. My home is on the third floor.对on the third 提问 is the floor third It on连词成句 连词成句is,third,the,my,floor,bedroom,on. The music room is on （ ）third floor. my classroom is on the third floor.的中文是 we live on the third floor,为什么不用live in