Expand the brackets, Present present perfection
1) it (to stop) the rain by the time I got out.
2) When I came home, my mother ( to cook already) dinner.
3) Dorothy. (just to collect) used books.
4)... (to do) they do their English homework?
5) and (be) cleaning the house all day.
6) your clothes smell bad. smoke recently)?
7) John (don't play) the violin since he was in school.
8) be ever) in England?
9) my sister ... (to enroll recently) in this University.
ty.
10) Mike (to never be) in Paris before.

My hobby is reading, whether it be a newspaper, a book, a magazine written by any good author. in my free time i always read stories, novels, novels, biographical and scientific articles and any other materials that interest me in my free time.
what about my hobby? this, most likely, is what i do with great pleasure in my free time from classes and household chores.
мое хобби – чтение, будь то газета, книга, журнал, написанная любым хорошим автором. в свободное время я всегда читаю рассказы, повести, романы, биографические и научные статьи и любые другие материалы, которые мне интересны в свободное время.
что можно сказать о моем хобби? это, скорее всего, то, чем я занимаюсь с огромным удовольствием в свободное от занятий и дел время.

Since ancient time Nature has served man, being the source of his life. For thousands years people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began increase. Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upset the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up. The pollution of air and the world's ocean, destruction of the ozone layers is result of man's careless  interaction with nature, a sign of  ecological cities. Environmental protection is of a universal concern. That is why serious measures to create a system of ecological security should be taken.