Story 33-A smart tortoise（聪明的乌龟）

A tiger is hungry and he is looking for food. He sees a frog in front of him.
"Haha! A frog! My dinner!" So he rushes to the frog.
Behind the tiger, there is a tortoise. The tortoise sees that and he bites the tiger's tail.
"Ouch!" Cries the tiger and he looks back. The frog hears the voice and jumps into water.
"Thank you, little tortoise." Says the frog.
But the tiger is very angry, "I'll throw you to the sky!" "Thank you, I like flying in the sky." Says the tortoise.
The tiger stops, "I will throw you into the river."
"Oh no! I can't swim. I will die if you throw me into the water." Then the tiger threw the tortoise into the water.
"Thank you, Mr. Tiger. Bye bye."
The tortoise and the frog swim away together.