阅读下面短文，用括号内所给词的适当形式填空(必要时可加情态动词或助动词)
One day, a boy {#blank#}1{#/blank#} (have) a
fight with one of his classmates. Then he went to his grandfather and told him
his story angrily. "He is really bad," the boy said," and I hate
(恨)
him." The grandfather said, "Let me {#blank#}2{#/blank#} (tell) you a
story. When I was a boy, I sometimes hated others for what they did, too. But
hate will make you {#blank#}3{#/blank#} (feel) tired. It doesn't hurt your enemy
(敌人)，but only hurts
yourself." As the boy listened carefully, the grandfather
{#blank#}4{#/blank#} (go) on, "There are always two tigers inside my heart.
One is good and kind. But the other is bad and unfriendly. It is difficult {#blank#}5{#/blank#}
(live) with these two tigers inside my heart. Because they both
{#blank#}6{#/blank#} (want) 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 and seriously, "The
one that I feed. I always{#blank#}7{#/blank#} (feed) the good and kind tiger, so
I never hate others and seldom (很少) get angry now."
