listen and read:
Mike:What about Li Dong and Zhao yu?
Tom:Look,they are on the slide.
3. on “在……上面” eg:My pen is on the desk.
4. in ”在……里面” eg:The boy is in the bedroom.
5.Under ”在……下面” eg:The dog is under the tree.
6. Behind ”在……后面” eg:She is behind the door.
