2. was doing, came
3. saw, wasn't working, was sleeping
4. came, were playing
5. didn't hear, were playing
6. was barking, came
7. was watching, arrived
8. was studying, began
9. wasn't hunting, shoted
10. were playing, started
11. gave, leaved
12. were seeing, were visiting
13. were driving, was born
14. was singing, lost
15. stoped, wasn't wearing
16. were you doing, happened
17. were walking, bear.
