To believe such a story one would have to believe in fairy tales! Hans
Christian knew many such tales. He had heard some of them from his father, who
had worked hard at his trade, but liked to read better than to make shoes. In
the evenings, he had read aloud from The Arabian Nights. His wife understood
very little of the book, but the boy, pretending to sleep, understood every
word.
曹老师,您好!
had heard some of them from his father, 这里用过去完成时,我能完全理解。但是had worked hard和had read aloud这里为什么要用过去完成时呢?