句型转换。

1. The girl is singing in the classroom. （改为一般疑问句）

                                                         

2. I am mending my bike now.（ 对画线部分提问）

                                                         

3. There are twelve students over there.（ 对画线部分提问）

                                                         

4. I can speak English.（改为一般疑问句）

                                                         

5. I have a desk and a chair.（用He做主语改写句子）

                                                        

6. She is buying some food in the supermarket.（改为否定句）

                                                         

7. I feel sick. （对画线部分提问）

                                                         

8. Did she row a boat ? （给予否定回答）

                                                         

9. I made model planes with my classmates on Sunday. （对画线部分提问）

                                                         

10. It's ten o'clock.（对画线部分提问）