Chuyển các câu sau sang câu bị động

Task 1. Chuyển câu sau sang câu bị động
1. Was this beautiful dress bought by Mary?
2. These old pictures won't be hung in the living room (by me).
3. This factory wasn't built (by the Greens) during the Second World War.
4. This house and these cars are going to be painted for Chrismas day by the Greens.
5. The new president will be interviewed on TV (by tsome people).
6. How many languages are spoken in Canada (by them)?
7. Have above sentences been finished?
Task 8. Change these sentences into Passive voice
1. The German didn’t build this factory during the Second World War.
2. The Greens are going to paint this house and these cars for Christmas Day.
3. Ann had fed the cats before she went to the cinema.
4. The students have discussed the pollution problems since last week.
5. Have the thieves stolen the most valuable painting in the national museum?
6. Some people will interview the new president on TV.
7. How many languages do they speak in Canada?
8. Are you going to repair those shoes?
9. He has broken his nose in a football match.
10. Have you finished the above sentences?