I

1. he had called
2. was standing; came
3. got; was eating
4. she said; walked; had been siting
5. was reading; appeared
6. came; saw; had happened
7. had passed; went
8. was flowing; had been flowing
9. had been
10. had read; heard; was quarreling

II

1. c
2. b
3. a
4. d
5. b
6. a
7. a
8. c
9. c
10. d