Прочитайте текст. For the past 100 years the immense stretch of barren American desert has been grow...: ответ на тест 1104707 - Английский язык

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For the past 100 years, the immense stretch of barren American desert has been growing smaller. Three generations ago, the wasteland extended from the Mississippi Valley in the east almost to the Pacific Coast. But men learned that the prairies could grow maize and that the grass lands could feed cattle and sheep or yield wheat. As they continued to cultivate the desert, the size of the desert area decreased.
Today, there are still 60 to 70 thousand square miles of desert. In the 600 miles between Salt Lake City and Reno, Nevada, there is nothing but dead lakes, dry rivers, snakes and small animal life, enormous mineral wealth, and the inhuman beauty of the desert.
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As they continued to cultivate the desert …

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The Sahara Desert in Africa is very dry. 1 _______. It is true that clouds pass over those areas and actually drop rain but the rain never touches the ground. The heat of the desert air evaporates the moisture as it falls.
2 _______. Scientists explain this phenomenon in the following way: spawn is sucked up into the air from the lakes and rivers by whirlwinds. They are very light and are carried through the air for great distances. 3 _______.Then they hatch in the air. When the wind loses its force the small animals are dropped to the earth.
There have been cases of fish weighing as much as 3 pounds falling from the sky in the course of a storm. 4 _______.

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Some people said it would be impossible to find a way through the dust and countless millions of rocks that lie beyond the inner planets. But despite its very baseless technology Pioneer made a successful crossing and went on to carry out it’s first mission – to study Jupiter.
It continued past the outer planets until 1983, crossing the paths of Saturn, Uranus and Pluto before finally entering the vast unknown area outside our solar system. There it will maintain course on its endless journey, passing close to Proxima Centauri in 70,000 years’ time. Eventually, scientists believe, in the safe vacuum of deep space. It may even outlive the Earth, which in five billion years will disappear as the Sun grows ever bigger and swallows up our tiny planet.
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The Earth will disappear in five billion years …

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Unlike old cities, such as London or Moscow, that grew by themselves, without any preliminary architectural plans, cities built later were planned by architects before construction started.
The best example of a Russian city built according to a plan is, without any doubt, St. Petersburg, founded by Peter the Great. Peter wanted to found a new capital for his new Russia, and for this purpose chose a piece of territory on the Baltic Sea that had been taken over by Russia after a war with Sweden.
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The best example of a Russian city built according to a plan is …

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Like many other very old cities, London was never planned. It grew around two centres – a fort the Romans built on one bank of the Thames, and an abbey, founded later on the other bank. As time went by, the place round the Roman fort developed into the City of London, the country’s business centre, the abbey is now known as Westminster Abbey.
By the middle of the first century AD London had already been in existence for about a hundred years. Roads leading to other towns had changed into streets, market grounds became squares. London was growing …
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Like many other very old cities, London was never …

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1_______,
The purpose of this letter is to follow up on the discussion we had in your office last week. This letter details the steps we discussed to make your project a reality.
Since my letter of December 10, there have been 2_______ that necessitate a different approach be used to develop the project. I look forward to 3_______.
Would it be possible to meet you either in Moscow or St. Petersburg to discuss this further?
4_______,
Mr. Lakes.