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Billy and Bobby are small boys. They are brothers, and they often fight with each other. This Saturday morning, their mother said to them, "I'm going to cook our lunch now. Go out and play in the garden and be good."

"Yes, Mum," the two boys answered, and they went out.

They played in the garden for half an hour, and then Billy ran into the kitchen. "Mum," he said," Bobby broke a window of Mrs Allen's house."Mrs Allen was their neighbour.

"He's a bad boy, "his mother said." How did he break it?"

"l threw a stone at him," Billy answered. "And he quickly moved down."