One day, a boy fought with one of his classmates.      “He is really bad and I hate him.”  the boy said.
The grandfather said, “Let me tell you a story. When I was a boy, I too, sometimes hated others for what they did.    It doesn’t hurt（伤害） your enemy (敌人) but only hurt yourself. ”
As the boy listened carefully, the grandfather went on, “There are always two tigers inside my heart. One is good and kind. He gets on well with everything around him.     He is full of anger （怒气）. Even the smallest thing will make him angry. He fights with everyone all the time, and for no reason. He can’t think carefully because he always hates others.    They both try to control (控制)me. ”
The boy looked into his grandfather’s eyes and asked, “Which tiger always controls you, grandfather?”
The old man said slowly in a serious voice, “   I always feed the good and kind tiger, so I never hate others and seldom get angry now. ”

A.But the other is bad and unfriendly. B.Then he went to his grandfather and told him his story angrily. C.But hate will make you feel tired . D. The one that I feed. E(AB).It is difficult to live with these two tigers inside my heart.