Ответ:
1. You are busy now, aren't you?
2. Kate was born in Kyiv, wasn't she?
3. Let’s speak English, shall we?
4. There aren’t many people in the library now, are there?
5. He couldn’t go there, could he?
6. Don’t take all the money, will you? (повелительное наклонение)
7. You haven’t heard from him for a long time, have you?
8. She knows you, doesn't she?
9. I am very old, aren't I?
10. Sam will be back early today, won't he?
11. That is my dog, isn't it?
12. Pupils have read a lot of books, haven't they?
13. My son didn’t see his friend, did he?
14. Shut up, will you?
15. Granny spent a lot of time on it, didn't she?
16. Nothing can stop us, can it?
17. They won’t help anyone, can't they?
18. There is no chair in the room, is there?
19. Boys should be late, shouldn't they?
20. Please, help me, will you?
21. He never smokes, does he?
22. Somebody took my coat yesterday, didn't they?
23. We will do it, won't we?