Odpowiedź:
ZAD. 1
ZAD. 2
1. Drivers have to use the seatbelts.
2. You don't have to be quiet in a park.
3.It's necessary for Tim to be fit to do his job.
4. You should see the dentist twice a year.
5. Children mustn't play in the street.
ZAD. 3
ZAD. 4
Wyjaśnienie:
Myślę, że wszystko ok.