A、Writers of his time had no means to protect their works. B、Possible sources of clues about him were lost in a fire. C、His work

What makes a person famous? This is a mystery that many people have carefully thought about. All kinds of myths surround the lives of well-known people. Most people are familiar with the works of William Shakespeare, one of the greatest English writers of the 16th and 17th centuries.(16)Yet how many know Shakespeare the person, the man behind the works? After centuries of research, scholars are still trying to discover Shakespeare’s personal history. It is not easily found in his writings. Authors of the time could not protect their works. An acting company, for example, could change a play if they wanted to. Nowadays, writers have copyrights that protect their work.
    Many myths arose about Shakespeare. Some said he had no formal education. Others believe that he began his career by tending the horses of wealthy men. All of these myths are interesting, but are they true? Probably not.(17)Shakespeare’s father was a respected man in Stratford-on-Avon, a member of the town council. He sent young William to grammar school. Most people of Elizabethan times did not continue beyond grammar school: so, Shakespeare did have, at least, an average education.(18)Some parts of Shakespeare’s life will always remain unknown. The Great London Fire of 1666 burned many important documents that could have been a source of clues. We will always be left with many questions and few facts.
16. What does the speaker say about William Shakespeare?
17. What do we learn about Shakespeare’s father?
18. Why does the speaker say parts of Shakespeare’s life will remain a mystery?