An old woman had a cat. The cat was very old, it could not run quickly, and it could not bite(咬), because it was so old. One day，the old cat saw a mouse; it jumped and c{#blank#}1{#/blank#}the mouse. But it could not bite the mouse, so the mouse got out of the cat's mouth and r{#blank#}2{#/blank#} away. Then the old woman became very a{#blank#}3{#/blank#}because the cat had not killed the mouse. She began to hit the cat.,The cat said, "Do not hit your old s{#blank#}4{#/blank#} I have worked for you for many years, and I would work for you still, but I am too old. Do not be unkind to the old, but you should r{#blank#}5{#/blank#} what good work the old did when they were young."