Замените придаточные предложения формами Participle II. Though he was not prepared well, he could answer that question.
Though not prepared well, he could answer that question.
1. When the letter was written, it was sent to Moscow. 2. If you are invited
to the party, you should come in time. 3. As he was asked, he brought his
article. 4. Though he was invited he did not come to the party. 5. When
the book was translated into the Russian language, it was read with great
interest.

Now I am at school. My holiday is over. Сейчас я в школе. Мои каникулы закончились. I spent my holiday very well. I went out with my friends, read, listened to music, watched TV, played computer games. Я провела каникулы очень хорошо. Я гуляла с друзьями, читала, слушала музыку, смотрела телевизор, играла комп. игры.  I spent some weeks in a summer cottage with my grandparents. I helped my grandpa to dig the garden, to water plants, and to gather fruit and vegetables.Несколько недель я провела в деревне у бабушки. Я капать огород, поливать растения, собирать овощи и фрукты.  Also I was fishing with my grandpa. I enjoyed floating by boat, swimming in the river and helping my grandparents. Также я ходила на рыбалку с дедушкой. Мне понравилось плавать на лодке, плавать в реке и моим родным.  Some days I was in the Crimea. It was a great time. I swimmed, walked by seaside, and visited many sights. Несколько дней я была в Крыму. Было классно. Я плавала, гуляла по побережью и посела достопримечательности. During my summer holidays I made many new friends, read a lot of interesting books, got to know a lot of useful things. Now I feel ready to get back to school. I am happy to meet my friends and teachers. Во время каникул у меня появилось много новых друзей, я прочитала много интересных книг, узнала много интересных вещей. Сейчас я готова к учебе. Я очень рада видеть своих друзей и учителей.

1) Their friends were invited by them to party on Sunday.
2) A little luncheon will be given to her by him at a restaurant.
3) The boy is forbidden to smoke  by him.
4) They were met at the station by me  and taken home in taxi.
5) The stranger was let in by her and seated comfortably on the sofa.
6) The boy will be taken to hospital by them. 
7) The animals have just been fed by them.
8) The door has already been shut by somebody.
9) The Tower of Lonchi was formerly used as a prison.
10) The dog was fed by him this morning. 
11) The chicken has been cooked very well.
12)  Our meetings are usually held here.