五．改错
Bob told me that he would like to be lawyer when he was at school. He had worked very hard at his lessons and tried to enter into a famous university, but something unhappily happened to his family, that made it necessary for him work for a living. As a young man, he had been a bus-driver, a dust-man or a salesman. But he spent his spare times studying and finally become a college teacher. “Young people,” he often said, “full of wishes and hopes after they step into society.”