Английский 15б, раскрыть скобки
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There are a lot of different professions in the world.  As for me, I would like to become a doctor.  It seems to me that it’s my vocation. I like to help people. I know that if you want to become a doctor you must be good at studies because a doctor is one of the most responsible professions. People trust doctors the main treasure they have – their life, that’s why  doctors must be highly qualified specialists. They must help people at any time and doctors can’t make  mistakes. Qualified specialist always diagnoses and institutes therapy correctly. Human life often depends on professionalism of a doctor. They must be openhearted people. They must worry about the health of their patients.  My grandmother is a doctor. She is proud of her profession and likes it. I consider this profession to be the best one for me too. So after finishing school I am going to enter the medical academy/university.
To conclude, choosing a profession is one of the most important decisions one has to make. We spend at work a lot of hours in our life that is why it has to bring us happiness and satisfaction and you should think well before jumping up to the final decision. I am sure my choice is correct.

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.