Day 9
按要求改写句子：
1. He did his homework in the classroom. （改为否定句）
____________________________________________
2. Mary can fly. （变为一般疑问句，并作否定回答）
____________________________________________
3. Tom jumps as far as Mike. （改为否定句）
____________________________________________
4. I see a man behind me. （改为一般过去时）
____________________________________________
5. Helen is good at singing. （同义句）
____________________________________________
6. The boy can jump higher than the girl. (改为否定句)
____________________________________________
7. It is hot insummer inNew York.（对画线部分提问-划线部分：hot）
____________________________________________
8. Liu Tao needs some pencils. （改为否定句）
____________________________________________
9. She is an English girl. （变为复数）
____________________________________________
10. They are our women doctors. （变为单数）
____________________________________________
