Answer:
1. left
2.were watching , crashed
3. may be played
4. I am not feeling well lately
5. She has not watched
6. played
7. Have you ever been to Venice?
8.Why did u not answer.....
9. We usually eat fish......today we ate chicken
10. lost
11. Learnt or learned
12. after he did....
13. Have you done your work yet? .....It was done ....
14. sat, may be went
15. may be drove