1. Jack helped me yesterday, didn't he?
2. She is not very busy, is she?
3. They don't have children, do they?
4. My friend can speak French, can't he?
5. It's 8 o'clock p.m. We have dinner, don't we?
6. Peter works hard, doesn't he?
7. Your sister didn't go to Leningrad, did she?
8. I'm a good student, aren't I?
9. Children aren't playing football in the schoolyard, are they?
10. She takes a shower every morning, doesn't she?
11. Tom can't walk, can he?
12. Our teacher has two sons, doesn't he?