1. a) writing b) written 2. a) surrounded b) surrounding 3. a) doing b) done 4. a) washing b) washed 5. a) singing b) sing 6. playing 7. written 8. written 9. covered 10. lost 11. going 12. translated 13. visited 14. lying 15. bought 16. organized 17. taken 18. lost 19. painted 20. received 21. gathered 22. blown 23. turning 24. coming 25. standing
2. a) surrounded b) surrounding
3. a) doing b) done
4. a) washing b) washed
5. a) singing b) sing
6. playing
7. written
8. written
9. covered
10. lost
11. going
12. translated
13. visited
14. lying
15. bought
16. organized
17. taken
18. lost
19. painted
20. received
21. gathered
22. blown
23. turning
24. coming
25. standing