B. Read the text again and find sentences in past perfect. Why are they used in the text?

В тексте встречаются следующие предложения в Past Perfect:

1. By the age of two he had learned to read and write.
2. Before his fifth birthday his parents had taught him to speak French and German and he played the piano rather well.
3. 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.
4. When all his friends were still in the second year, he had already left school.
5. After he had finished college, he went to University to become a microbiologist.
6. He was happy because he hadn't wasted his time and got a good profession that he loved.
7. 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.

Past Perfect используется для обозначения действий, которые завершились до определенного момента в прошлом.

Ответ: Past Perfect используется для обозначения действий, завершившихся до определенного момента в прошлом.