Jim, with his father, goes to see his grandfather. In the train Jim often puts his head out of the window. His father says, “Jim! Don't put your head out of the window!” But Jim goes on putting his head out of the window.
So his father takes Jim's cap quietly (悄悄地), hides (藏) it behind his back and says, “You see your cap is gone.” Jim is afraid.
His father says, “Well, whistle (吹口哨) once. Maybe your cap will come back.” Jim whistles. His father puts quickly the cap on Jim's head.
Oh! It is wonderful. Jim laughs. He quickly takes his father's cap and throws (扔) it out of the window. “Now it is your turn to whistle, Dad!” He says happily.
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