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