Spectators mustn't throw anything onto the stage.
Nothing must be thrown onto the stage.
Someone needs to fix the laptop.
The laptop needs to be fixed.
Nobody can do it.
It can't be done.
People will remember her forever.
She'll be remembered forever.
They should arrest him.
He should be arrested.
You have to switch it off.
It has to be switched off.
Somebody had broken the TV.
The TV had been broken.
Simon will interview the actor.
The actor will be interviewed by Simon.
They have found a cure for the disease.
A cure has been found for the disease.
They close the cafe at 5pm.
The cafe is closed at 5pm.
A million people watched the show.
The show was watched by a million people.
Someone ought to feed this dog.
This dog ought to be fed.
