1. is taking
2. are we having
3. has
4. 'm not solving
5. comes
6. begins
7. do you wake up
8. are you doing
9. don't work ... 'm working
10. isn't sleeping ... is studying
11. do you review
12. 'm not going
13. don't understand
14. works
15. takes
16. is
17. is
18. smells
19. doesn't belong
20. do you live
