1. Does the play begin at half past seven?
2. Are there some people talking loudly in the theatre?
3. Did some people smoke cigarettes in the cloak-room?
4. Is Nick speaking quietly to Ann?
5. Will Ann and Nick come home from the theatre before twelve o'clock?
6. Is there a girl in a green dress on the stage?
7. Do Ann and Nick like to go to the theatre?
8. Did I meet my friend in the interval?