Exercise 54a. answer the questions in the present
perfect or in the past indefinite. make a proper choice
of the adverbial modifier
examples: have you ever been to moscow?
yes, i have. i have been there many
times.
yes, i was there last year.
1. have you ever seen the film “hamlet”? 2. has
mother made a cake? 3. have you ever been ill with
the flu? 4. have you read the book “oliver twist" by
ch. dickens? 5. has your father come back from his
business trip? 6. have you written a letter to your
girl-friend? 7. has she sent greetings cards to her rela-
tives? 8. has your boy-friend shown you his collection
of discs? 9. have you ever been to the hermitage?
10. has your mother finished knitting a cap for you?
11. have you seen his new flat? 12. have you taken
any snaps of your fellow-students? ​

Space exploration — the discovery and exploration of outer space using space technology. Physical exploration of space conducted both with manned space flight and unmanned spacecraft. Technical study of the cosmos preceded the development of astronomy and the creation of large and relatively efficient rockets in the early twentieth century. Space exploration was one area of rivalry between the USSR and the USA in the cold war. The beginning of the era of space exploration can be considered the launch of the first artificial Earth satellite — Sputnik 1 launched by Soviet Union on 4 October 1957. The Soviet space program was at the forefront.

Я считаю, что люди осваивают космос потому, что ищут лучшей жизни. Многие ученые думают, что где-то в солнечной системе есть планеты, пока не известные нам. Там хорошая экология и нет выбросов.  Земля уже совсем освоена, а людей становится все больше. То, что мы сейчас считаем невозможным, в будущем может стать реальностью. Я уверена, что через несколько сотен лет люди будут сами выбирать свое место жительства, так как обитаемой будет не только Земля. Президенты всех развитых государств тратят большие деньги для того, чтобы космонавты именно их страны стали лучшими. Благодаря этому соперничеству лидирующая страна войдет в историю. Это будет примером для последующих поколений. Думаю, что сейчас именно в нашей стране самое лучшее оборудование для полетов в космос.

На английском:I believe that people master the space because they are looking for a better life. Many scientists think that somewhere in the solar system has a planet, not yet known to us. There's a good environment and no emissions. The land is quite mastered, and people are becoming more and more. What we believe is now impossible can become a reality in the future. I'm sure that in a few hundred years, people will be able to choose their place of residence, as is inhabited not only the Earth. The presidents of all the developed countries are spending a lot of money to the astronauts was their country was better. This rivalry leading country will become history. It will be an example for future generations. I think that now in our country the best equipment for space travel