閱讀理解：

　　Of all the students of Grade Four, Bill is the tallest．He is thirteen, and of course, he is the oldest, too．But he is the worst and the most foolish(愚蠢的)．He can’t answer the easiest(最容易)questions in class．And he never passes the exam．

　　But the boy is the strongest(最強壯的)in his school．Even the boys in higher grades are afraid(害怕)of him．So he leaves home with an empty(空的)bag．When he gets to school, his bag is full(滿的)of fruit and cakes．Sometimes he brings some back home．His mother, Mrs．King　,is always happy．When she sees them, she praises(表揚)her son, for she can save(節(jié)省)some money．

　　This morning, Mrs．King went shopping in the market．She saw an old man selling eggs there．She chose(選擇)twenty-four but paid(支付)only for twenty．The old man was too busy to count(計數(shù))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 did not say a word．(說話)

　　“What’s your favorite food, dear?” asked Mr．King．

　　“Eggs, of course．”

　　“Well, then,” said the man, “Can you tell us what can lay(產(chǎn)卵)eggs?”

　　The boy thought for a while(想了一會兒)and said, “Hens, ducks, geese…mum!”

　　“Oh? But why?”

　　“I often hear they call me ＇BAD EGG｀．”