Present perfect употребляются для выражения длительного действия,

    это present  perfect   continuous  употребляется  для  выражения  длительного  действия,  которое  началось в прошлом и еще совершается в настоящее  времяа  present  perfect  употребляется  для  выражения   действия,  совершившегося к настоящему моменту, результат которого имеется  налицо в настоящем времени.

L. london — the capital of the uk. 2. in london prices are always a lot of tourists. 3. in london levoto multi-stakeholder movement. when you cross the street, snatch la look right, then left. 4. — excuse me, how to get to the nearest metro station? bus stop across the street. 5. if we take a taxi, bu dem house in half an hour. 6. — is this bus going downtown? yes. 7. day on the street very strong movement, but whose transport is almost there. 8. where you are going provo dit summer vacation? 9. tomorrow we are going to visit their friends. 10. please call me as soon as you arrive. 11. he will go to england as soon as you learn english. 12. what are you doing tonight? 13.  where do i go when i cross the street? 14. — to order tickets in advance? — yes, please. 15. — will you show me your city? — of course. 16. we'll have a housewarming when pe will reedem to a new apartment. 17. you will spend many the hospital if you do not live in an expensive hotel. 18. he doesn't like to fly, he said that the best form of transport is the train. 19. the bus was so crowded that we decided not to go and went on foot. 20. "train ka will take you just two hours, you will then have half an hour of free time before lunch," said the guide. 21. saturday   not a day for travel on public transport. everywhere a lot of people. 22. when i get my av to the car, i'll travel around europe.

In my opinion, private business should control the infrastructure in our country. it leads to the most effective way of spending money. because of the free market, demand and the necessity of paying off, the infrastructure  built by private business will be in the right place and at the right time, where it will be the most useful for people.  the government  is not able to manage this tasks because of its corruption. and, what is more important, government builts infrastructure using the money of taxpayers. when all federal budget goes to paying for the moscow infrastructure, regional taxpayers are offended. private business easily solves this inequality.