Active to Passive
Amy has mailed a letter.
The letter has been mailed by Amy.
One of the patients has been bitten by a dog.
A dog has bitten one of the patients.
Pearls ____ ________ inside oysters. (find)
are found
grow
grown
The painting is sold to someone.
Passive
John cleans the garage every week.
The garage is cleaned by John every week.
The windows are cleaned by our cleaning lady.
Our cleaning lady cleans the windows.
Animal skins _____ _________ to make fur coats. (use)
are used
break
broken
John invited us to the party.
Active
Columbus has discovered America.
America has been discovered by Columbus.
A letter is written by my friend.
My friend writes a letter to his friend.
Diamonds _____ _________ in several countries. (mine)
are mined
buy
bought
Peter built the house last summer.
Active
My mom prepares dinner every day.
Dinner is prepared by my mom every day.
Breakfast is made by Maria every morning.
Maria makes breakfast every morning.
Spanish ______ __________ in Italy. (not speak)
isn't spoken
forget
forgotten
Butter is made from milk.
Passive
The teacher teaches the students French.
The students are taught French by the teacher.
Cars are driven on the left side of the road in England.
People drive cars on the left side of the road in England.
Perfume ____ __________on special occasions. (wear)
is worn
freeze
frozen
I have never been to Australia.
Active