Once 1 a time, a tortoise (乌龟) and two swans (天鹅) lived on a 2 . They were very good friends. They spent many hours happily together.
To their bad luck, there was no rain that year. The lake became dry. So they had to 3 the lake in search of another one to live.
The two swans could fly easily, 4 for the tortoise it was difficult. The three of them began to wonder, unsure of what to do next.
At last, the two swans had an idea. They said to the tortoise, "We will place a stick (棍子) in your mouth. We will carry the stick in our beaks (鸟嘴) on 5 side. This will make us fly together. But remember, you must not 6 your mouth. If you do, you know what will happen to you."
The tortoise was sad to leave the lake, but it 7 to the idea happily.
One fine morning, they were flying over a large town. The people of the town were surprised at what they saw in the 8 . They were very curious about it and started shouting excitedly.
The tortoise heard the noise and wondered what it was about. It forgot its promise and opened its mouth to ask curiously, "Why is there... Ah...!"
Sadly, down fell the tortoise, and 9 .
The swans had no chance to save it. They were sad to lose their best friend but had to fly away and 10 their new life.
