William is a famous writer now. But he said he was not a1student when he was young.He was often late for2and didn᾽t like doing his homework. Sometimes, he slept in class while the teacher was teaching. He didn᾽t understand much, 3he always thought he understood everything. One day the teacher4the students a question, "When Jack was ten years old, 5 brother Bob was twenty. Jack is fifteen now and 6 is his brother Bob?" William said, "That᾽s easy. Bob is twice as old as Jack, so he is now thirty."
Another time, the 7 in a science class asked," When it thunders,8do we always see the light before we9the sound?"
"But,Miss," said William quickly, "don᾽t you10our eyes are in front of our ears?"
