Of all the students of Grade Four, Bill is the tallest. He's thirteen, and of course, he's the oldest, too. But he's the worst and the most foolish( 愚蠢的 ). He can't answer the easiest questions in class. And he never passes the exams. But the boy is the strongest in his school. Even the boys in higher grades are afraid of him. So he leaves home with an empty bag. When he gets to school, his bag is full of fruit and cakes. Sometimes he brings some home. His mother, Mrs King, is always happy when she sees them. She praises( 赞扬 )her son, for she can save some money. This morning, Mrs.King went shopping in the market. She saw an old man selling eggs there. She chose twenty-four but paid only for twenty. The old man was too busy to count( 数 )them. She hurried off and told her husband as soon as he came back for lunch. "How clever you are!”Mr.King said happily. And Bill was busy eating the eggs, so he didn't say a word. "What's your favorite food,dear?"asked Mr.King. "Eggs, of course." "Well,then,"said the man,"Can you tell us what can lay eggs?” The boy thought for a while and said,"Hens,ducks,geese( 鹅 )...and...and mum!" "Oh?But why?” "I often hear they call me'BAD EGG'."