11. How long has she lived in London?
12. Where have you been?
13. How much coffee have you drunk today?
14. What have you done today?
15. How long has he worked here?
16. Why have you brought that?
17. How many times have you visited Scotland?
18. How many books have you read this week?
19. How long have you studied English?
20. How much food have you bought?
