1. They should have cleaned the windows. - The windows should have been cleaned by them. 2. I could hear the music from far away. - The music could be heard by me from far away. 3. Has someone repaired the machine? - Has the machine been repaired by someone? 4. I'm not going to the party. No one invited me. - I'm not going to the party. I wasn’t invited by anyone. 5. They didn't tell Jim about the change of plans. - Jim wasn’t told by anyone about the change of plans. 6. I will send the letter by fax. - The letter will be sent by me by fax. 7. Mrs. White runs this hotel. - This hotel is run by Mrs. White. 8. He might take us to the airport in this car. - We might be taken to the airport by him in this car.