Unit 5 Our School Life,Topic 2 Section A A few students are running around the playground,playground 操场,library图书馆,lab实验室,dining hall餐厅,classroom building 教学楼,What is he doing,He is running now,on the playground 在操场上,What is she doing,She is riding a bike now,What is the boy doing,He is reading a book now,in the library 在图书馆,What is the man doing,He is doing some cleaning now,in the classroom building 在教学楼,What is he doing,He is studying now,In the lab = laboratory 在实验室,What is the girl doing,Sh