1. They will punish him.
He will be punished by them.
2. My grandfather built this house in 1948
This house was built by my grandfather in 1948
3. They have just done the work.
The work has been just done by them
4. They are painting my office today.
My office is being painted by them
5. He sent a Christmas postcard yesterday
A christmas postcard was sent by him
6. Somebody has found Mary's watch.
Mary's watch has been found by somebody
7. They grow coffee in Brazil
Coffee is grown in Brazil
