Change these sentences into passive voice

C. Exercises:
I. Change these sentences into passive voice:
1. People use milk for making butter and cheese.
Milk...........................................
2. The milkman brings bottles of milk to houses.
Bottles of....................................
3. Careless driver causes many accidents.
Many accidents...............................
4. People speak English all over the world.
English...................................
5. They don’t use this house very often.
This house...............................
6. Do they teach French in this school?
Is.........................................
7. Somebody will clean the floor tonight.
The floor.....................................
8. You mustn’t open this parcel until Christmas Day.
This parcel................................
9. We can use the garbage to make fertilizer.
The garbage...........................
10. Alexander Graham Bell invented the telephone.
The telephone........................