Ответ:

Present perfect or past simple

1. saw
2. have never seen
3. have just met
4. met
5. have already decided
6. decided
7. were
8. have you ever spent
9. was
10. has lived
11. haven't been there
12. didn't go

Task ll

1. the fattest man
2. the most attentive
3. better than
4. fatter than
5. as tall as his brother
6. worse
7. quiet
8. the best
9. more interesting than
10. easier
11. as cold as it was yesterday
12. shorter than
13. the longest