One fine evening, a nice princess(公主) goes out to take a walk in a wood(森林). She plays with a golden ball(金球)in her hand. Suddenly, her golden ball falls into a big hole on the ground. She is very sad. Then, a frog comes.
Frog: My beautiful princess, why do you cry?
Princess: Because my golden ball is in the hole. I can't get it.
Frog: Don't worry, I can help you. But can you promise(答应)me a kiss after getting the ball?
Princess: OK. I promise.
The princess gets her golden ball, but she doesn't like the ugly frog. She runs away because she doesn't want to kiss it. She talks to her father, the king.
King: What's the matter, my dear?
Princess: The frog is too ugly. I can't kiss it.
King: Keep your words. Go and invite(邀请)that frog to our dinner.
After dinner, the king asks the princess to sleep with the frog. She cries again. Her teardrops（泪珠)fall on the frog, and it changes into(变成) a nice boy. He's a prince!
At last, the princess and the prince live happily together.
