续写：A crow is sitting in a tree. She has a piece of meat in h

A fox, who feels hungry, walks by. He wants to eat that meat in crow's mouth. Suddently, he comes a good idea: persuade the crow to sing. When the fox asked her to sing, the crow feels shy, because she is not good at singing. But after fox repeated emphasize that she is so pretty and must have a sweet voice, the crow was convinced that she is good at singing. However, once she open her mouth, the meat drops, and fox rushed to get it. Then, with a crafty smile, the fox leave, left the crow in astonishing.