Помогите пожалуйста с английским.

Задание: Rewrite the sentences in the passive.
1. We cook all the meals.
2. He shot the tiger with a gun.
3. People make wine from grapes.
4. Sarah hit him on the head with an umbrella.
5. Who designed the Eiffel Tower?
6. Children will post the letters.
7. Is Tim cleaning the house?
8. He must tidy his bedroom.
9. Who made all these cakes?
10. The police has already arrested the thieves.