Помогите пожалууууйста ! Поставьте предложения в посивный залог ( Passive )

6. Two butterflies were caught by Molly yesterday.
7. The old letters were burnt in the fire by him.
8. Good manners are forgotten when he stays in the street.
9. A lot of jokes will be heard by them tomorrow.
10. A pucture was stolen from the museum by somebody last night.
11. His brother will be taught by Tim how to run fast.