Odpowiedź:
1. since lunchtime
2. since October
3. since they were at school
4. for two hours
5. for a long time
6. since Monday
7. since 2015
8. since I was born
9. since 9 o'clock
10. for some hours
11. since Christmas
12. for 10 years
13. for a week
14. for ages
15. since we moved here
