1. A strange man was watching the people in that house from across the street early this morning. : The people in that house were being watched by a strange man from across the street early this morning. 2. The police will arrive soon. : It can’t be changed. 3. A police car will be sitting at that corner for the rest of the week. : It can’t be changed. 4. From there, the police can see everyone who comes and goes from that address. : From there, everyone who comes and goes can be seen by the police from that address. From there, everyone who comes and goes from that address can be seen by the police. 5. Someone wrote a hateful message on the front door of the house a few weeks ago. : A hateful message on the front door of the house was written by someone a few weeks ago. A hateful message was written on the front door of the house a few weeks ago. 6. Few people who don’t live here enter this neighborhood. : This neighborhood is entered by few people who don’t live here. 7. The family in that house is worrying about (verb)the problem. : The problem is being worried about by the family in that house. 8. The police are listening to every phone conversation at that number. (one information) : Every phone conversation at that number is being listened to by the police. (phrase of the verb) 9. This neighborhood has never experienced such a strange event. : Such a strange event has never been experienced by/in this neighborhood. 10. The city should establish a police checkpoint at that intersection as soon as possible. : A police checkpoint at intersection should be established by the city as soon as possible. 11. Someone is going to notice that man the next time he appears in the area. : That man is going to be noticed by someone the next time he appears in the area. 12. The family hadn’t lived in the neighborhood for very long before someone left the first angry letter in their mailbox. : The family hadn’t lived in the neighborhood for very long before the first angry letter was left in their mailbox. 13. The mayor has promised that the police will have arrested that man by the first of next week. : The mayor has promised that this man will have been arrested by the first of next week. 14. Someone had left angry messages on their answering machine before someone delivered the first threatening letter. : Angry messages had been left on their answering machine before the first threatening letter was delivered. 15. Things like this are not supposed to happen in this neighborhood. : can’t change