1. The fire had already reached the roof by the time the firemen arrived.

2. Joe Smith went to prison because he had stolen a lot of money.

3. Helen went to bed after she had watched her favourite TV programme.

4. My father bought the new car after he had tried it a few times.

5. By the time Sonia got to the party, everyone had begun dancing.

6. Lorenzo had eaten all the ice cream before I opened the fridge.

7. There was a lot of snow outside because it had snowed earlier in that day.

8. Beatriz didn't pass the test because she hadn't studied at all.

9. Look! Somebody had left the windows open.

10. By the time the police arrived, the burglar had broken into my neighbour's house.

11. The girl felt guilty because she had drunk all the milk.

12. Our flat was robbed because we hadn't locked the front door.

13. My father couldn't find the money because he had hidden it in a drawer.

14. Leonard didn't have money for the bus because he had forgotten to ask his mother.

15. My cousin had never visited a mine until his father took him one day.

16. Her bicycle wasn't there because a friend had taken it without asking her.

17. Daniel was arrested after he had escaped from prison.

18. When Kathy met Jonathan, he had joined the Navy.

19. Before they arrived at the airport, they had paid the taxi driver.

20. His dog had died two weeks ago. He was very sad.

1.  had already reached

2.  had stolen 

3.  had watched 

4.  had tried 

5. had begun 

6. had eaten

7.  had snowed 

8. hadn't studied 

9.  had left 

CHO MK CÂU TLHN NHA!!!

10. had broken

11.  had drunk 

12.  hadn't locked

13.  had hidden 

14. had forgotten

15. had never visited 

16.  had taken 

17.  had escaped

18.  had joined 

19.  had paid 

20. had died