Researchers find new medicines every year.
New medicines are found by researchers every year.
The vet saved my dog.
My dog was saved by the vet.
Many scientists study the environment in the lab.
The environment is studied by many scientists in the lab.
John painted the walls and the door.
The walls and the door were painted by John.
Millions of British people watched the Royal Wedding last year.
The Royal Wedding was watched by millions od British people last year.
Sarah and Lucas play tennis in the clay court.
Tennis is played by Sarah and Lucas in the clay court.
The students wrote a song for their teachers.
A song was written by the students for their teachers.
Fleming invented the Penicilin.
Penicilin was invented by Fleming.
Some people speak German in Austria and Switzerland.
German is spoken by Some people in Austria and Switzerland.