Transposez ces phrases suivantes au passif en ne mentionnant le complément d'agent que si nécessaire.
1. A hurricane destroyed the town.
2. The police shoudn't allow people to park here.
3. They took him for an Englishman.
4. A motorcycle knocked her down.
5. They will invite Mary but they won't invite Sarah.
6. You must keep dogs on lead in this public garden.
7. They have built over 100 new houses in this district.
8. Can't people do something about that ?
9. A Chinese firm makes these cars.
10. A computer could do this much more quickly.