Напишите 10 предложений в страдательном залоге

1. The flat is cleaned every day.
2. Jane is often invited to the parties.
3. The documents are sent every Monday.
4. Cheese is made of milk.
5. The letter will be posted next week.
6. The car is washed every day by my brother.
7. The problem was not solved.
8. Criminals are caught by the police.
9. This computer is not used anymore.
10. My wallet was stolen yesterday.