Сократите текст до 5 предложений.
kevin was a prodigy child. by the age of two he had learned to read and write. before his fifth birthday his parents had taught him to speak french and german and he played the piano rather well. kevin was a great lover of books and by the age of ten he had already read all the books in his father’s library. when all his friends were still in the second form, he had already left school. after he had finished college, he went to university to become a microbiologist. at sixteen he was ready for his final exams and soon became the youngest scientist in the history of his country. he was happy because he hadn’t wasted his time and got a good profession that he loved. the only problem with kevin was that he had never played football or basketball with his friends and had no idea of sports, games or children’s parties: he hadn’t had time for them.
This is a teacher. / It is a teacher.
These are cats (these как и галагол должен быть во множ. числе)
I am a pupil.
These dogs are nice.
This само по себе this/these может просто употребляться перед существительным и переводится как "этот" (these - эти).
These pencils are nice.
I like this cat.
Но в значение " это (есть) ... " употребляются только this is/it is или these are (во множ. ч.)
These are books.
This is a book.