Odpowiedź:
zadanie 1
1. hasn't finished
2. have the children ever catched
3. has met
4. has the singer sung
5. hasn't taken
zadanie 2
1. I haven't
2. she has
3. they have
4. he hasn't
5. we have
zadanie 3
1d
2b
3e
4a
5c
zadanie 4
1. Jan has fallen off his bike again.
2. Someone has eaten all the ice cream.
3. I have lived here for ten years.
4. The clock has stopped working.
5. Bill and Jerry have been to China twice.
