1, The floor was cleaned yesterday by my mother .

2, Ten emails have been written for 2 hours by my friend . 

3 Our house is being painted by my father . 

4, You will be called by me if there is any important imformation . 

5, The windows were broken by the boys yesterday . 

6, Nam's wallet was stolen .

7, This cake is eaten by John .

8, A deer is killed by a tiger .

9, English is learned by he at school .

10, A new hat was bought by her last night .

11, His story isn't believed .

12, The book was written many years ago by them .

13, This work was started last month by him

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1. The floor was cleaned by my mother yesterday.

2. 10 emails have been written by my friend for 2 hours.

3. Our house is being painted by my father.

4. You will be called if there is any important information.

5. The windows were broken by the boys yesterday.

6. Nam's wallet was stolen.

7. This cake is eaten by John.

8. A deer is killed by a tiger.

9. English is learnt at school by him.

10. A new hat was bought by her last night.

11. His story isn't believed.

12. The book was written many years ago.

13. This work was started by him last month.