Form passive sentences - all tenses

Form passive sentences - all tenses.
1. They are building the house.
2. Anna opened the window.
3. We have done our homework.
4. I will ask a question.
5. He can cut out the picture.
6. The sheep ate a lot.
7. We do not clean our rooms.
8. William will not repair the car.
9. Did Sue draw this circle?
10. Could you feed the dog?