The Raven and the Fox（在线收听）

    One day a big，black raven found some cheese Then she flew upinto a tree with the cheese in her mouth．A fox came by and saw the bird He saw the cheese as well．He，too，wanted to eat the cheese．He said to the raven，“You look very nice．If you can sing nicely as well，I think you can become the Queen of all the birds．”
    The raven was very pleased．She liked to be called a queen．“Yes，I can sing，”she said．But as she said this，the cheese fell down to the ground from herbeak．The fox picked up the cheese and ran away．Exercises：
    回答下列问题：
    ①Why do you say that raven was greedy？
    ②Are you greedy？