Помогите, пожалуйста!
Передайте следующие предложения в Passive Voice.
1. I saw a UFO yesterday. 2. Mike has just read a very interesting book. 3. Angela often writes letters to her boyfriend. 4. They had pulled down the house before the revolution began. 5. He will pass his exam successfully. 6. I must do this work in time. 7. She will send a mail soon. 8. We are giving a party now. 9. I brought the documents last week. 10. He always invites a lot of friends to his birthday party.