Ответ:
9) 2. did we / 3. didn't he / 4. don't you / 5. did they / 6.didn't you

10) 2. wasn't I / 3. can you / 4. didn't he / 5. was she / 6. could he / 7. do we / 8. aren't you / 9. can they / 10. aren't we

11)  
2. They are very good tennis players, aren't they?
3. Dad worked hard last week, didn't he?
4. You are going home, aren't you?
5. They did like the film, didn't they?
6. You can't play the piano, can you?

Объяснение: Pleasure to help you!