1. Have you taken
2. I have been working. Ive just come. Havent had
3. has been the dog
4. havent walked
5. havent finished
6. have you put
7. have you eaten
8. have you been knowing
9. have you been doing
10. has Charles visited
11. has learned
12. have been watching
13. Has he studied
14. has never smoked
15. have you been waiting
16. havent seen
17. has been writing. hasnt finished
