Make the sentences passive. Make two passive sentences where possible.
1. Has someone repaired your car? 2. They are repairing the bridge. 3. They haven’t printed the results yet. 4. The company management won’t tell the stuff about the problems. 5. They are improving the property. 6. They don’t manufacture computers at that factory. 7. The producers will advertise their new product on TV. 8. Students must do the work carefully. 9. Local authorities don’t provide this service during the winter. 10. Are the manufactures going to transport the goods directly to the client? 11. They have forbidden smoking in this office for the last five years. 12. The security didn’t warn us about the danger. 13. We will inform you of any change in the situation. 14. They have cleared all the snow off the motorways. 15. They might delay the flight by up to two hours. 16. The police were going to prosecute him until new evidence came to light. 17. They didn’t give us the correct instructions

The first underground system was proposed by Charles Pearson in 1843. Twenty years later the first line of the London Underground was opened for traffic. In the early days, the trains were driven by steam locomotives, which burnt coal, filling the tunnels with smoke. It is said that the train staff and porters asked for a permission to grow beards and moustaches – as an early form of smog mask. The tunnels of the first underground were made as small as possible in order to reduce the construction costs. According to Pearson’s project, all lines were laid down close to the ground surface. The first escalator was also installed in theLondon Underground in 1911. The railways were prepared for any emergency that might occur. To minimize the danger of flooding the underground near the Thames, isolating doors were built in the tunnels. All the trains were equipped with special reduced lighting for using on open sections of track.

Rare are types to which now disappearance yet doesn't threaten, but they meet in such small amount or in such limited territories that can disappear at adverse change of habitat under the influence of natural or anthropogenous factors. In other words, under the influence of, say, adverse climatic conditions, natural disasters (earthquakes, eruptions of volcanoes, mudflows, floods, storms, tornadoes, etc.) because of sharp difference of temperatures, abundance of an atmospheric precipitation and other reasons, and also as it is told above, under the influence of anthropogenous factors. And it means - from vigorous activity of people in this or that area of dwelling of animals and plants without preservation of their shelters and food supply, as a result of replacement of animals from territories occupied by them, destruction of spawning areas or gnezdoviya, the wrong application of toxic chemicals and mineral fertilizers. Factors of concern of animals, their unregulated production and, of course, poaching have great value also is really terrible for animals and the shameful phenomenon for society.
Disappearing animals, by definition of the Red List are those types which are under the threat of the disappearance which rescue is impossible without implementation of special measures. What, in brief, these measures? The most strict and absolute prohibition of production, maximum preservation of habitat, creation of wildlife areas, reserves and others state резерватов. Creation of special nurseries for the contents for the purpose of studying of their biology in the conditions of bondage or semi-free existence without damage to health and with a problem of acclimatization or reacclimatization, and the main thing, reproduction for increase in number. Strict isolation of animals from various factors of concern is thus necessary from people and technical means operated by them.