完形填空

　　One day a mother mouse and her babies were out in the forest. They were playing and having a good time 1 a hungry cat came near. It did 2 a big tree and then went through the tall 3 until it could almost hear them 4 . After the mother mouse and her babies know what was going on, the cat 5 from its hiding place and started to run 6 them.

　　The mother mouse and her babies 7 ran away at once. They hurried to their home, which was 8 a large stone. But the baby mice were so 9 that they could not run very 10 .

　　Closer and closer the cat came. In no time the cat would catch them. What was to be done? Can you find them a way out?