A)

1. called , was parking
2. was driving, she saw
3. wasn't watching
4. was he lying
5. was leaving, rang
6. It was snowing
7. lived
8. wrote , were sleeping
9. was recovering
10. woke up , was getting

B)

1. sat , while drinking
2. made , was cleaning
3. knocked, was reading
4. bought, was living
5. didn't meet
6. was having , went
7. was feeling, didn't go
8. arrived, introduced
9. was running, fell ,broke
10. was teaching, met