6.Возвратные местоимения употреблены правильно в предложениях: A) I’ll do it myself.
B) Himself try to do this job.
C) Dry yourself with this towel.
D) They yourselves came to the party.
E) Yourself help to this salad!
F) This kettle switches himself off.
G) Help yourself to sandwiches, please!
H) We’ve found a nice place themselves.

 1) Every parent at least but once asked his or her child to help around the house. Children often don't want to do something, because they would rather  go for a walk or play computer games. 
2) But this is our home, we are a part of our house so we also should invest in its wellbeing and must work too! Cooking, shopping, washing, cleaning the flat are the things, teens should practise  while living in their family before they grow up and live on their own.
Our help is also a sign of respect and attention to our parents. Working together brings people more and more together. 
But why, so often, adults ask us to do something, although they can handle it themselves for a few minutes? Well, they ask us because they teach us to keep order in the house, and the ability to work. They do it because parents always do everything for the benifit of their child.
3) To conclude, I can confidently say that some help in doing the chores is a must for a teenager. Undoubtably, teenagers should help their nearest and dearest about the house. I think that those teens who help their parents to do something at home and have some domestic duties grow and become more responsible.

Those people who live in a big city and those who live in a small town or in the country lead different ways of life. We choose where to live according to our preferences and character.There are a lot of advantages of living in a big city. Firstly, people have more opportunities to receive good education and to find a well-paid job there. In any city there are a lot of educational establishments and a great number of firms which need qualified specialists. Besides, there is a wide choice of entertainment in a big city. One can visit concert halls, theatres, museums, art galleries, cinemas, clubs, restaurants, cafes, discos and what not. To my mind, a big city gives people all modern conveniences and cultural opportunities.However, it is well-known that citizens suffer from a great number of problems such as traffic jams, huge crowds of people, dirty public transport and many others. Living in a big city is dangerous to your health. Factories emit tons of harmful chemicals; cars exhaust toxic gas and the air is so dirty that it is hard to breathe. That is why a lot of people prefer living in the country to living in a big city. In a village one can enjoy fresh air, beautiful nature and the quietness of provincial life.To conclude, it's up to you to decide whether to live in a city or in the country. But I think that if you are tired of noise, illumination and crowds, you can always leave a city and have a rest in the country to improve your health or just for a change of scene может это?)