Tìm lỗi sai và sửa lại 20.How many student does your school have? 21.He wasn't watch a film two days ago 22.Listen! Nga is play the piano in the room 23.Tuan aren't driving a car at present 24.Hoa's father often going to HN by motorbike 25.What time does your father goes to work? 26.Does her mother cooking dinner now?
