根据答语写出特殊疑问句。

1. —_____ is your English teacher?

    —Miss Gao Xing is.

2. —_____ do you often go to bed?

    —At 9: 30. 

3. —_____ do you have a sports meeting every year?

    —It's on September 29th.

4. —_____ does your father work?

    —He works in a hospital.

5. —_____ is your favourite food?

    —Sandwiches.