1. a) was sleeping

2. b) came

3. b) were you doing

4. b) was stealing

5. b) talked

6. a) came

7. a) did you arrive

8. b) did you have

9. b) were having

10. a) bought

1) was doing, broke

2) was playing, was doing

3) were you doing, was trying

4) was having, heard

5) was working, passed