B) Find 3 sentences in the Present Perfect. Translate them into Russian.B) Find 3 sentences in the Present Perfect. Translate them into Russian.​

Britain which is formally known as the United Kingdom of Great Britain and Northern Ireland is the political unity of England, Scotland, Wales and Northern Ireland. 
It is located on the British Isles
Its total area is about 244 thousand square kilometres. 
The coasts of the UK are washed by seas of 2 oceans:  the Arctic and the Atlantic.
The scenery is the coastline is rather picturesque.
The capital of the UK is London.
The official language is English.
The national symbols of the UK are the Red rose and the Lion, the flag 'Union Jack', and the anthem 'God Save the Queen'.
Its form of government is a constitutional monarchy.
Officially the supreme legislative authority is the Queen in Parliament
and the two Houses of Parliament .and the elected House of Commons. 
But The Queen officially opens each Parliamentary session.
The  three major parties are the conservative party, the new labour party, and the democratic liberal party.
The largest cities are Birmingham, Glasgow, Liverpool, Manchester, Edinburgh, Belfast and Cardiff.
The chief river is the Thames River 
Britain's major industries include  iron and steel engineering, shipbuilding, electronics.

7.1

В этом задании нужно использовать третью форму глагола (Ved; отмечено жирным) в форме Present Perfect (т.е. по формуле: has/have + Ved) и употребить её так, чтобы логически подытожить данные ранее высказывания (чит. силлогизмы). Как известно, есть правильные и неправильные глаголы — поэтому где-то мы используем т.н. супплетивизм корней, то есть когда корень разнится в зависимости от формы (go - went - gone), или же суффиксацию, т.е. добавляем к основе суффикс -ed (improve - improved - improved). Поэтому выходит так:

Tom is looking for his key. He can't find it. — He has lost his key. (Он потерял ключ.)Margaret can't walk and her leg is in plaster. — She has broken her leg. (Она сломала ногу.)Last week the bus fare was 80 pence. Now it's 90. — The bus fare has gone up. (Плату за проезд на автобусе подняли.)Maria's English wasn't very good. Now it is better. — Her English has improved. (Её английский улучшился.)Dan didn't have a beard before. Now he has a beard. — He has grown a beard. (Он отрастил бороду.)This morning I was expecting a letter. Now I have it. — The letter has arrived. (Письмо пришло.)The temperature was 20 degrees. Now it is only 12. — The temperature has fallen. (Температура упала.)7.3

В этом задании нужно сделать практически то же самое: использовать третью форму глагола в форме Present Perfect, но употребить её не в предложении-следствии, а в ответе. Кроме того, здесь используются краткие формы глаголов, то есть 's и 've (вместо has и have) — разница с полной формой, как известно, в том, что краткая форма — атрибут разговорной речи.

No, thank you. I've just had lunch.I'm afraid, he's gone out.Wait a minute! I've not finished yet.No, I've done it myself / already.Have you found a place to live / anything?I've not decided yet.No, she's come back.