英语笑话:猫和老鼠 Cat and Mice

Mrs Brown went to visit one of her friend and carried a small box with holes punched in the top.　　" What's in your box?" asked the friend. 　　"A cat," answered Mrs Brown. "You see I've been dreaming about mice at night and I'm so scared! This cat is to catch them." 　　"But the mice are only imaginary," said the friend. 　　"So is the cat," whispered Mrs Brown.