3. C (plant -> planted)
4. C (since -> before)
5. C (say -> said)
6. A (work -> had worked)
7. A (already gathered -> had already gathered)
8. B (come -> came)
9. C (prepared -> was preparing)
10. C (was coming -> came)
11. C (did -> had done)
12. C (has -> had)
13. so nice a film -> such a nice film
already saw -> has already seen