Slang: "ain't" (answers)

1. Your mother isn't going to be happy about this.
2. We haven't (or aren't) finished with you yet.
3. There isn't enough time today.
4. Isn't that my luck?
5. I am not allowed to stay out past 10:00.
6. Haven't you ever eaten shrimp?
7. She hasn't got any bed to sleep in.
8. If it isn't broken, don't fix it!
9. Playing tennis isn't my idea of a good time.
10. It isn't acceptable to use slang words in English grammar class.