Голицынский, 6-е издание. Модальные глаголы. Упражнение 543

1. can you ask.
2. can it be.
3. can (could) not have seen.
4. cannot forget.
5. could visit.
6. cannot (could not) have forgotten.
7. could finish.
8. can’t be (cannot be).
9. could use.
10. could have slept.
11. cannot have (can’t have).
12. could speak.
13. can I call.
14. could I have.
15. cannot really decide, could see.