разобрать слово "выступают" как часть речи

Помогите написать предложения в пассивном залоге.

1. They always take pictures on holidays .
2. Do people write letters nowadays?
3. What do we usually make salads from?
4.The waterman expect a rainstorm tomorrow.
5. People generally grow flowers in front of their houses.
6. Grannies usually tell wonderful fairy tales.
7. Peter the Great founded St. Petersburg in 1703.
8. What languages do people speak in India?
9. The fire destroyed the palace.
10. You won't forget our meeting, you will remember it.

Что такое 

натуральная (материальная) модель -?

Информационная модель-?