It took Charlie several months to save up(积蓄)seven dollars. He wanted to b a model plane and went to the shop with the money.

    On the way, Charlie saw a little boy cat a corner of the street. "W are you crying?" Charlie asked.

    “Three big boys took a   my four dollars just now." the boy said, "I was on m  way to buy some exercise-books, but now I can't."

    Charlie thought of the s  dollars in the pocket. He also thought of the model plane and the poor b  . Charlie wanted to walk away, b  he did not. At last he g  four dollars to the boy and went home.

    Charlie f happy. Do you know why? He was happy because the little boy was happy.