Put the transitive verbs into the passive voice. Do not mention the agent unless it seems necessary 1. They haven't stamped the letter 2. They didn't pay me for the work ; they expected me to do it for nothing 3. He escaped when they were moving him from one prison to another 4. She didn't introduce me to her mother 5. A trightful crash wakened me at 4 a.m 6. When they have widened this street the roar of the traffic will keep residents awake all night 7. They threw away the rubbish 8. A Japanese firm makes these television sets 9. An earthquake destroyed the town 10. A machine could do this much more easily