Use the verbs in the Passive Voice. 1. My chief has promised me a four-day holiday. 2. She had written the answers to all the questions long before the end of the lesson. 3. They have always listened to these lectures with interest. 4. She has thrown away at this year's newspapers. 5. They have always laughed at his jokes. 6. They have known this fact for years. 7. She said that they hadn't invited him. 8. He knew that some historian had described this period but he didn't remember his name. 9. I wondered where they had hidden the key. 10. He wondered why they had posted the letter unstamped. 11. No one has lived in this house for the last hundred years. 12. He left two years ago and we haven't heard from him ever since. 13. Have they told him about the changes in the timetable?

1. A four-day holiday has been promised to me by my chief.

2. The answers to all the questions had been written by her long before the end of the lesson.

3. These lectures have always been listened to with interest by them.

4. At this year's newspapers, she has been thrown away.

5. His jokes have always been laughed at by them.

6. This fact has been known by them for years.

7. It was said by her that he hadn't been invited.

8. It was known by him that this period had been described by some historian, but he didn't remember his name.

9. I wondered where the key had been hidden by them.

10. He wondered why the letter had been posted unstamped by them.

11. This house has not been lived in for the last hundred years.

12. Two years ago, he left, and we haven't heard from him ever since.

13. Has he been told about the changes in the timetable by them?