1 Where is your study?---- It’s on the second floor, next to my bedroom.你的书房在哪里，它在二楼，我卧室的隔壁
在第几楼：on＋the＋序数词＋floor,
△2 Is there a computer in your study?你书房里面有电脑吗
Yes, there is.\ No, there isn’t.
3 Why not= Why don’t you come upstairs and have a look?为什么不上楼来看一看
