1. 句型转换

1. （1） They play football after school. (改为否定句)

   They football after school.

3. （2） Her math lesson starts at 8: 00. (对划线部分提问)

   does her math lesson?

5. （3） We have four classes in the morning. (改为一般疑问句，并作肯定回答)

   — four classes in the morning？

   — , . 

7. （4） Science is my favourite lesson. (对划线部分提问)

   is favourite lesson?

9. （5） past, we, a, nine, half, break, have, at(. )(连词成句)