Ответ:
1)
1. was flying
2. were waiting
3. were crossed
4. we're playing
5. was wash9
6. was cooking
7. was slicing
8. was jumping
2)
1. broke
2. went
3. was seeing
4. was having
5. met
6. was cooking
7. took
8. lost
3)
1. came, was playing
2. turned on, happened
3. was walking, saw
4. were running, fell over
5. got, went
6. was drinking, dropped
7. was listening, heard