Unit 4Where do you work?Lesson 22,CCTV 中国中央电视台,hospital医院,shopping mall 购物中心,in: 表示在的里面。,on :表示在的上面，通常是与物体接触的上面。,Where does your father work?,He works in a police station.,Where does your aunt work?,She works at a school.,Where does your uncle work?,He works in a factory.,Where does your mother work?,She works in a hospital.,Goodbye!,
