Nobody has made any mistakes.
No mistakes have been made.
Someone broke two of my dinner plates.
Two of my dinner plates were broken.
Somebody took it while I was out.
It was taken while I was out.
They treated us to ice cream.
We were treated to ice cream.
Somebody broke the railroad tracks.
The railroad tracks were broken.
They turned down my offer.
My offer was turned down.
They will take her to the hospital tomorrow.
She will be taken to the hospital tomorrow.
Somebody will meet the visitors at the station.
The visitors will be met at the station.
Somebody has shot your uncle.
Your uncle has been shot.
Poverty drove him to desperation.
He was driven to desperation by poverty.
They will give you the answer next week.
You will be given the answer next week.
Has someone repaired that chair yet?
Has that chair been repaired yet?
Someone blew a whistle three times.
A whistle was blown three times.
Somebody has locked the box and I cannot open it.
The box has been locked and cannot be opened.
