Odpowiedź:
1. They have finished their dinner
2. He hasn ' t started doing his homework
3. Have you swum in a lake?
4. I haven' t climbed a really high mountain before.
5. Has he been to this part of the country before?
6. We have learned a lot about history on this holiday.
7. My haven' t wathed TV for nearly two weeks.
8. Have you eaten sushi before?
Myślę że dobrze :))
