We should always keep the classroom ________ and tidy.
You should eat _____ fruit and vegetables, but _____ meat. You are too heavy.
The students in the north are going to have ____ winter holiday.
Our teacher asked us ______ the window closed. It was a little hot in the room.
______ bad weather! We have to stay in.
- Must I finish my homework now,Dad? - No, you ______ . You can do it tomorrow.