Someone cleans the windows every Monday.
The windows are cleaned every Monday.
They built this bridge in 1602.
This bridge was built in 1602.
Someone will send this package by Fedex.
This package will be sent by Fedex.
Sharks have killed dozens of surfers this year.
Dozens of surfers have been killed this year by sharks.
The dog was taken out by Kim last night .
Kim took the dog out last night.
Someone sells coconuts at the beach.
Coconuts are sold at the beach.
J. B. Shaw wrote this book.
This book was written by J. B. Shaw.
Airbus will design a new aeroplane.
A new aeroplane will be designed by Airbus.
Picasso has painted over 100 paintings in the 19th c.
Over 100 paintings have been painted by Picasso in the 19th c.
Susan cooked dinner.
Dinner was cooked by Susan.
They cut down thousands of trees every day.
Thousands of trees are cut down every day.
Alexander Fleming discovered penicillin.
Penicillin was discovered by Alexander Fleming.
The president will give a speech tonight.
A speech will be given by the president tonight.
Fishermen had killed a great white shark before you arrived.
A great white shark had been killed by fishermen before you arrived.
Scientist are developing a new vaccine.
A new vaccine is being developed by scientists.
Many consider the iPhone to be the best phone ever.
The iPhone is considered to be the best phone ever.
People didn’t use credit cards much 30 years ago.
Credit cards weren’t used much 30 years ago.
I don't think he will sell his car soon
I don't think his car will be sold soon
A large number of people haven't read Hemingway!
Hemingway hasn't been read by a large number of people.
More and more people don't use cash.
Cash isn't used by more and more people.
Many consider U2 the most successful band ever.
U2 are/is considered the most successful band ever.
Picasso painted some of the most expensive paintings ever.
Some of the most expensive paintings ever were painted by Picasso.
We will have to do something about that.
Something will have to be done about that.
Students haven't finished the project.
The project hasn't been finished by the students.
They say that Julia always comes across as a very shy person.
It is said that Julia always comes across as a very shy person.