Chuyển các câu sang bị động
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13. Ann had fed the cats before she went to the cinema.
14. The students have discussed the pollution problems since last week.
15. Have the thieves stolen the most valuable painting in the national museum?
16. Some people will interview the new president on TV.
17. How many languages do they speak in Canada?
18. Are you going to repair those shoes?
19. He has broken his nose in a football match.
20. Have you finished the above sentences?
21. When will you do the work?
22. How are you going to deal with this problem?
23. How do you spend this amount of money?
24. I wonder whether the board of directors will choose Susan or Jane for the position.
25. How did the police find the lost man?