Hãy đổi những câu sau ra thể bị động

Hãy đổi những câu sau ra thể bị động
1. The secretary opens the mail every morning
2. The army will complete the project next year
3. His boss has transferred him to another department
4. Will the company distribute the announcement next week?
5. An artist wrote that interesting article about Paris
6. A large number of people speak English today
7. They didn't return those books to the library
8. Someone stole all her valuable jewelry last night
9. Bad weather has delayed Flight 202 from Miami
10. She has to divide the money among the children