Help please with English Ex 27 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?

Finally started summer. I really love this time of year, because nothing to do.
This summer I went around the gold ring of Russia. We have been in many cities, such as Suzdal, Vladimir, Yaroslavl'. We saw a lot of old buildings. church. temples, the credit, and very many monuments.
I go fishing with papa in Belorusiyu. We lived in a village near the city Turov. We have prepared for an ear, they katlis on a catamaran and of course they catch fish.
So I had in the village grandma and grandpa, I learn to ride in the car with dad in the fields. I ate a lot of berries, fruits and vegetables. I really like to live in the country.
Of course I went out with my friends, we went to the movies in the river was much all funny. Too bad the summer is gone forever.

Большие и маленькие города празднуют свои Дни рождения, как люди. В России они называются "День города". Люди хотят, чтобы их родной город в этот день выглядел особенно красивым. Повсюду множество цветов,шариков, флажков и других украшений. Вы можете также купить специальную городскую карточку. Это семейный праздник. Каждый полон веселья. Люди смотрят и принимают участие в парадах и карнавалах.Улицы превращаются в концерты. Много спортивных, танцевальных и песенных конкурсов. Многим людям это нравится.В вечернее время салют.