句型转换。
1. The math books are on the desk. (改为否定句)
The math books _____ _____ on the desk.
2. The video tapes are in the bookcase. ( 对画线部分提问)
_____ _____the video tapes?
3. My hat is on the chair.（改为一般疑问句并作否定 回答）
_____ _____hat on the chair?
No, _____ _____.
4. Is that her plant?（改为复数形式）
_____ _____ their _____ ?
5. Is it on the floor?(改为复数形式)
_____ _____ on the floor?