修改时间：2021-05-20 浏览次数：125 类型：同步测试
It's a hot day. A mother crow and her two kids are flying in the sky. They are very thirsty. So mother says to her children," Let's find some water to drink. "They find a jar on the floor. There's some water in the jar. But it's not full. Their beaks are too short. They can't drink the water. Little crows don't know what to do. Mother crow looks at the jar, then she asks her children to put some stones into the jar. Oh, the jar is full now! The mother crow and her children can drink the water now. How clever the mother crow is!
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