Question tags after affirmative statements

Question tags after affirmative statements
1. His wife has headaches quite often…………………
2. The twins arrived last night………………….
3. Mary paints portraits……………………
4. Bill puts the money in the bank…………………….
5. Bill put the money in the bank……………………
6. Prices keep going up…………………
7. I've seen you before…………………
8. Bill's written a novel………………
9. His mother's very proud of him…………………
10. The twins used to play rugby……………………….
11. Tom might be at home now…………………
12. We must hurry………………………
13. You'd been there before……………………
14. You'd like a drink……………………
15. The boys prefer a cooked breakfast………………….
16. Mary ought to cook it for them…………………………….
17. That was Ann on the phone………………………
18. The Smiths need two cars…………….
19. You'll help me…………………
20. He used to eat raw fish…………………
21. There'11 be plenty for everyone………………
22. You'd better wait for Bill……………….
23. You'd come if I needed help……………
24. You could come at short notice…………………