1. This saucepan can be used by you for cooking spaghetti.
2. My homework has to be finished tonight.
3. Your bedroom must be tidied by you.
4. These clothes ought to be put away.
5. The secretary was given some letters to type by the boss.
6. This cake should be eaten by us immediately.
7. A birthday card was sent to Peter by Sally.
8. The dog must be taken for a walk.
9. The mouse isn`t being chased by the cat.
10. Is oil produced by them in the Spain?
11. Was he bitten by a dog?
12. A new song hasn`t been recorded by Edward.