Daming has got a. It  walk. And it can dance. One day, hey will do. They will do the housework. They will help children. But theydo our homework. 

    Mr. Black had two cats. One was very big and the other was quite small. He liked them very much. One day, Mr. Green, a friend of his, came to see him. To his great surprise, he saw two holes （洞）in the door, a large hole and a small hole. He said, “My dear friend, why are there two holes in your door?” “Let the cats in and out, ” Mr. Black answered.“ But why are there two holes? Isn't one hole enough?” asked his friend. “How can the big cat go through the small hole? He said.