key answer

Write passive sentences in Simple Present.

1. The documents are printed.
2. The window is opened. 
3. The shoes are bought.
4. The car is washed.
5. The litter is thrown away.
6. The letter is sent.
7. The book is not read.
8. The songs are not sung.
9. The food is not eaten.
10. The shop is not closed.

Write passive sentences in Simple Past.

1. The test was written.
2. The table was set.
3. The cat was fed.
4. The lights were switched on.
5. The house was built.
6. Dinner was served.
7. This computer was not sold.
8. The car was not stopped.
9. The tables were not cleaned.
10. The children were not picked up.

Write passive sentences in Present Perfect.

1. The postcard has been sent.
2. The pencils have been counted.
3. The door has been closed.
4. The beds have been made.
5. The mail has been written.
6. The trees have been planted.
7. The money has been spent.
8. The room has not been booked.
9. The rent has not been paid.
10. The people have not been informed.

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