The students have to do the exam on Friday.
The exam has to be done on Friday.
We must follow the instructions carefully.
The instrutions must be followed carefully.
People might pick up the garbage in the forrest.
The garbage might be picked up in the forrest.
We should take care of wild animals.
Wild animals should be taken care.
My father can't feed the dogs today.
The dogs can't be fed today.
Governments have to create new environmental laws.
New environmental laws have to be created.
Children don't have to hurt the pets.
The pets don't have to be hurt.
Can you take out the dog?
Can the dog be taken out?
We must write an essay for my course.
An essay must be written for my course.
Should you organize the party for next Saturday?
Should the party be organized for next Saturday?
Alex might not see the movie.
The movie might not be seen.
Ben has to buy some jackets for the cold.
Some jackets have to be bought for the cold.
Could you deliver these catalogs?
Can these catalogs be delivered?
Peter doesn't have to take the photographs.
The photographs don't have to be taken.
Donna must design costumes for the play.
Costumes must be designed for the play.
Dan couldn't fix the car.
The car couldn't be fixed.
