One day, Peter had a fight with one of his classmates. Then he went to his grandfather and told him his story 1.“He is really bad，”the boy said,“and I2 him.”
The grandfather said,“ 3 me tell you a story. When I was a boy, I too, sometimes hated others for what they did.”
As Peter 4 carefully, the grandfather went on.“There are always two tigers inside my heart. One is5 and kind. He gets on well 6 everything around him. But 7 is bad and unfriendly. Even the smallest thing will make him angry. He fights with everyone all the time, and for no reason. He can't think carefully 8 he always hates others. It is difficult to live with these two tigers inside my heart. They both try to control（控制）me.”
Peter looked into his grandfather's 9 and asked,“10 tiger always controls you, Grandfather?”
The old man said slowly and seriously,“The one that I feed. I always feed the good and kind tiger, so I never hate others and seldom（很少） get angry now.”