Odpowiedź:
Exercise 3.
2. Sam and Ted have met Roger Federer. They were really surprised.
3. The dog has eaten its dinner.
4. I've done judo.
5. Spencer and Abi have flown in planes.
We've run ten kilometres.
Exercise 4.
2. Sam and Ted haven't met Roger Federer. They weren't really surprised.
3. The dog hasn't eaten its dinner.
4. I haven't done judo.
5. Spencer and Abi haven't flown in planes.
6. We haven't run ten kilometres.
