1. 句型转换

1. （1） They are going to have dinner together. (改为一般疑问句)

   they to have dinner together?

3. （2） Are the four boys going to play cards this evening? (作否定回答)

   ,   .

5. （3） I can't go to school because I am ill. (对划线部分提问)

     you to school?

7. （4） morning, do, what's, to, going, Betty, Saturday, on(连词成句)