Mr. Green has a fruit shop in the town. He is friendly to the people, so people like to buy fruit in his shop.
One day, Mr. Green brings some grapes home for his grandson Steven because he knows his grandson likes eating grapes best. He puts these grapes in the kitchen. After lunch, he goes back to his shop. That afternoon Steven comes back from school. He looks around for something to eat and finds the fruit. "Great!I am so lucky today!Grapes are the best things in the world!"
Mr. Green gets home after he closed his shop in the evening. When he sees Steven, he asks, "Do you have the grapes?" His grandson answers, "Yes. And I eat all of them. "
"Do you wash them?"
"Oh, I forget. I am too hungry. What should I do?"
A few minutes later, Mr. Green finds that Steven is drinking water.
"Are you thirsty? Why are you drinking so much water?" asks Mr. Green.
Steven says, "I want to wash the grapes in my stomach(胃) with the water. "