阅读下面材料，在空白处填入适当的内容(1个单词)或括号内所给单词的正确形式。

An old woman had a cat. The cat was old. She couldn't run (quick)and she couldn't bite, she was so old. One day the old cat saw a mouse; she jumped and (catch)the mouse. But she could not (bite)it, so mouse got out of her mouth and ran away.

Then the old woman became so angry she began to hit the cat, because the cat had not killed the mouse. The cat said, "Do not hit (you)old servant I have worked for you many years. Do not be (kind)to the old, but remember what good work the old did when they (be)young. "