Make questions to the underlined words:
1) In the XIX century electrification changed every aspect of human life. 2) In those years Tesla was battling Edison. 3) The voltage level will be raised easily with inexpensive transformers. 4) It takes a few milliamperes of current to cause heart fibrillation. 5) DC has maintained a crucial role in modern life.

Dogs and cats can be wonderful companions but there are also a number of problems associated with pet ownership both for the animals and for the community.
In the best situations peta are fed, carried for and loved as part of a family. It is easy to see how much attention is given to pets by the range of products available in the pets section of supermarkets in return cats and dogs Contribute to the well being of the community in many ways. Dogs are useful for protection And serve as guides for the disabled. People with pets are not only happier and healthier but may even live longer. Those the animals benefit individuals and the community as well.
There are however also negative aspects for the pets and for the community. Their freedoms of both dogs and cats are increasingly restricted. In Australia there is community pressure to force owners to keep cats inside at night to protect native birds and animals. Dogs can no longer run free in parks and at the beach but must be kept on leads . These restrictions have been imposed by the community to protect the public. In addition pet owners are required to clean up after their dog. Parks and beach often provide plastic bags for this purposes. The community also has to pick up the cost of dogs and cats that have been abandoned by irresponsible owners.
So the relationship between pets and the community is a complex one. More and the community is intervening to force pet owners to restrict the activities and freedom of their pets. Still responsible owners prepared to give adequate time and attention to their cats and dogs can give them a good and happy life

ПО РУСС
Изучение иностранных языков важно в наши дни. Я думаю, что культурный и современный человек должен изучать иностранные языки. Но я предпочитаю английский язык. Почему? Английский становится глобальным языком. Половина миллиарда человек в мире используют английский дома или на работе. Английский – это язык, который известен всему нашему прекрасному, величественному и удивительному миру. Английский настолько распространен, что он стал стандартным языком всех видов международных общений.

Проблемы 21-го века, такие, как проблемы войны и мира, экологии, не могут быть решены, если не говорить на одном языке.

На английском языке говорят более 350 миллионов человек, он является родным языком 12 наций и официальным языком более чем 33 национальностей. Это означает, что каждый седьмой человек в мире говорит на английском языке.

Некоторые люди изучают английский язык, потому что они нужны им в работе, другие много путешествуют за границу,а для многих изучение английского языка любимое занятие. Я начала изучать язык с 11 лет. Мне он очень нравится. Но я также люблю свой родной русский язык. Великий немецкий поэт Гёте однажды сказал: «Тот, кто не знает иностранного языка, не знает и своего собственного». Я согласна с ним, все познается в сравнении. Знание английского языка мне познавать русский язык.
ПО АНГЛ 
Learning foreign languages is important nowadays
I think that any educated person must learn foreign languages. But I prefer English to other foreign languages. Why? English is becoming a global language. A half of billion people in the world use English at home or work. English is the language which is known for the most part of our fine, magnificent and surprising world. English is so widespread that it has become the standard language for all kinds of international communication.

A lot of problems of the 21st century, such as the problems of war and peace, ecology, can not be solved without speaking the same language.

The English language is now the first language of about 350 million people, the native language of 12 nations and the official language of more than 33 nations. It means that one of seven people in the world speaks English.

Some people learn English because they need it in their work; others to travel aboard and for lots of people learning English is just a hobby.

I have been learning English since the age of 11. I like learning English very much. But I like and know well my native language, Russian. The great German poet Goethe once said: “He, who knows no foreign language, does not know his own one.” I agree with him. The knowledge of English helps me to learn Russian.