Mr Clarke works in a middle school. He likes reading and often 1 some books from the library. He keeps listening to the radio every morning and 2 newspapers after supper. So he knows much and teaches 3 . His students worship(崇拜) him very much. Mike, Mr Clarke's little son, is only nine. He 4 likes reading books. And he often asks his father some questions. Mr Clarke always thinks Mike is too 5 to understand him and chooses the easiest ones to answer. Of course the boy is not satisfied with(对……满意) it.
One day Mike read 6 about the electric lights(电灯) and was interested in it. When his father told him to do some housework, he went 7 thinking of it. He asked him a few questions, and his father answered all. Then his father said proudly,"Fathers always know 8 than sons!"
The boy thought for a while and said,"I don't think so!""Oh? Why?"
Mike didn't answer and asked 9 , "Who invented the electric lights?"
"Thomas Edison,"answered Mr Clarke.
"Why didn't his father invent them, then?"
Looking at his son, Mr Clarke didn't know 10 to answer!
