1. Somebody broke the window
The window was broken
2 They will do their homework tomorrow.
Their homework will be done tomorrow
3.Somebody found my dog yesterday.
My dog was found yesterday
4. Kate has written a story.
The story has been written by Kate
5. Tom cleans his room every day.
Tom's room is cleaned every day
6. Kate gave Mark a lift after the concert
A lift was given to Mark after the concert
7.Agata uses the computer every day.
The computer is used every day by Agata
8. They will buy a car.
The car will be bought
9. Mark does his homework every day.
Mark's homework is done every day
10. Agata speaks Spanish
Spanish is spoken by Agata (dziwne zdanie, normalnie takiej informacji nie przekazywało by się za pomocą strony biernej)