Change the following sentences from Active to Passive Voice.
1. The management is checking her work.
2. They took the visitors to the train station.
3. They were preparing the students for the exam.
4. He has asked his friends to come to the concert.
5. Someone had taken their bags to the rooms.
6. He will paint the door tomorrow.
7. You mustn't leave the computer on.
8. He always writes his letters in green inc.
9. I can find the books tomorrow.
10. You should answer all phone calls immesiately.