Svp avant 16h30 si possible

1. Was sleeping… rang
2. Were eating
3. Went… bought… read
4. Were watching… heard
5. Was… arrived
6. A: Were you doing
B: was cleaning
7. Visited
8. Were having… came
9. Was working… found
10. Was studying
11. Was walking… met
12. Was… was falling… were singing… were doing
13. Was