1. She (teach) at this school for twenty years.2. David (paint) in his studio since 10 o'clock.3. Mary and Sam (collect) stamps for 3 years.4. Their parents (be) friends since their childhood.5. Dave (be) a student for 2 years6. I read) Tolstoy stories in the park for two hours.7. I (read) three stories.9. He is my friend, I know) him for a long time.Поставьте глагол в скобках в Present Perfect или Present Continuous ​

If I could choose, I would definitely prefer to live in the countryside, and the number of reasons is countless. First of all the rushing pace of the city is somethig that I'm getting tired of. Social anxiety is the worst consequence of this constant stress; it leads to isolation and loneliness. But stress doesn't go anywhere. I'm not saying that living in the countryside allows you to become a completely laid-back person; you still need to work hard to make a living, but at least you can enjoy the air which is not poluted with traffic fumes, you can admire the views and just feel the long lost unity with nature. 
Moreover, as the towns and villages of the countryside are usually very small, the feeling of community is much stronger. Living in the city we often don't even know the names of our neighbours, while in the countryside your neighbours can become your close friends who will be happy to help you in need.
Another thing that matters a lot to me is the possibility of getting fresh fruit and vegetables straight from the ground. Instead of buying processed or genetically modified fod from the supernarket, you can grow your own greens or ask your neighbouring farmers for some goods. 
All in all, the countryside living seems much more appealing to me. Maybe my opinion is a bit idealistc and will change with time, but for now I would really enjoy spending a moth or two in a remote village somewhere by the lake surrounded by green hills.

Big city is where you can see many vehicles,many skyscrapers, many peple with a hurry pace of life. That place can fascinate us very much due to its light and luxury.Nowadays, more and more pople want to live there because they see many advantages. Indeed, in a big city, people can have the best chances to work as well as can enjoy the best service and entertaiment.

In a big city, people can take the chaces to study and work best. There are many good University for u to choose in a big city. There you can express your ability to study what you like. Moreover, when you graduate, you also find it easier to find chances to get a good job with good salary, that is quite difficult in small cities or countrysides; because there concentrates many big companies and groups. Hence, many graduate students choose big cities to live and work. In short, it is where you can take advantages f yourself.

In addition, in a big city you can enjoy the best service and entertainment. Because there are many rich people here, they can invest much money to get the best for them. Lives in a big city are quite luxurius but you don't have to be worried when you are sick or suffer a disease because there you can find good doctors for you, as long as you have muich money. What's more, in a big city you can enjoy new entertainment such as new games or luxury games.
Many people can argue that living in a big city makes them tired with noise and dash. They like the slow pace of life in a countryside. But I think that you can live there for a long ime because the young always like to enjoy new things and want to have much money, which is very difficult to do in a countryside. However, when you get older, especially when you retire, a countryside wll the best choice to live.

In summary, living in a big city has many advantages. However, you have to try your best to overcome all difficulties such as hard competition in workplace or polluted environment. you shuold not complain when face up to disadvantages of it.