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The underground railways as a kind of city transport appeared in the second half of the 19 th century. The first underground system was proposed for London by Charles Pearson in 1843. But most people criticized the project. It was spoken of as a fantasy. Indeed, when constructed, the Metropolitan line, as it was called, was not a success. It was a short distance railway, only a few miles in length, and Londoners went on travelling by surface transport as they feared to get deep under the ground. But this situation did not last long. Wishing to attract more passengers to the underground railway Alfred Stanley, General Manager of the Metropolitan line, filled the stations with flowers and wild animals in cages. While travelling , howerever, public experienced many discomforts The tunnels were made as small as possible in order to reduce construction costs. The coaches themselves were small and narrow . No wonder that people called this underground line a "sardine-box railway ". The small windows in the trains were made in the roof so that passengers could see nothing . The oil and gas lamps used gave little light. So passengers wishing to read, while travelling , had to take candles with them. Besides, ning the steam locomotives filled the tunnels with steam and smoke. It was this discomfort that later on made engineers introduce electric traction for hauling trains on underground railways When put into service, electric trains eliminated steam and smoke and ensured a much more frequent service for passengers. Since that time the construction of great rapid subway systems in such great cities as London, New York, Berlin and Moscow has Become practicable.

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Ответ:
Me name is. I'm from___. I worry about ecological problems of my country. The biggest problem in my city is the air pollution. If I were leader of my counry, I would protect all nature. I would stop dangerous factories, which polluting air. I would plant fields, parks and forests, because they less air pollution. The traffic fumes are reason of acid rain, so I would ban cars and all people breathe clean air.
I know this proverb: "If every person swept their own doorstep, the city would soon by clean". I agree with it. I thik that if a man plant one tree in his garden, this world would be better.
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Ответ:
1)      You must keep cleanliness and order on your desk and in the classroom. (Ты должен соблюдать чистоту и порядок на своей парте и в классе.)
2)      You must keep silence during the lesson. (Ты должен сохранять тишину во время урока.)
3)      You do not have to turn around during the lesson. (Ты не должен вертеться по сторонам во время урока.)
4)      You should not bother others from listening of teacher's explanations. (Ты не должен мешать другим слушать объяснения учителя.)
5)      You must come to the lesson on time. (Ты должен приходить на урок вовремя.)
6)      You must come to the lesson with your homework done. (Ты должен приходить на урок с выполненным домашним заданием.)
7)      You must have with you all the things you need: textbooks, notebooks, pens and pencils. (Ты должен иметь при себе все необходимые тебе предметы: учебники, тетради, ручки и карандаши.)
8)      You should not leave the classroom without the teacher's permission. (Ты не должен без разрешения учителя покидать класс.)
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