1. Is she buying a hat?
2. Does she often buy hats?
3. Would she like to buy a hat?
4. Can she buy a hat?
5. Will she buy a hat?
6. Must she buy a hat?
7. Is there a hat in the box?
8. Is the hat nice?
9. Will we buy a hat for her?
10. Are there two hats there?
11. Will she remember the name?
12. Does she remember the name?
13. Can she remember it?
14. Will she repeat the word?
15. Will she forget the number?
16. Does she forger everything?
17. Do they forget everything?
18. Will he thank her?
19. Will they knock at the door?
20. Will we discuss the idea?