Passive voice

This book ______ by J.K. Rowling.

• was written

• is writing

• wrote

• writes

The cake ______ tomorrow morning.

• will be baked

• bakes

• is baking

• baked

The letter ______ already.

• has been sent

• to send

• was sending

• is sent

Errors ______ if you are not careful.

• are made

• make

• were making

• have made

The school rules ______ every year.

• change

• are changed

• were changing

• changes

They clean the classroom every day.

Someone repaired the computer last week.

María is painting the walls blue.

The chef will prepare dinner tonight.

The workers built this bridge 50 years ago.