Mr. Black has two cats. One is big and the other is small. He likes them very much. One day his friend Mr. Green comes to see him. He is very surprised(惊讶的). He finds there are two holes in the door, a big hole and a small hole.
“My dear friend, why are there two holes?" asks his friend.
“How can the big cat go through（穿过）the small hole?" he says.
Kate is a new student. She is twelve. She is from America. She can speak English very well and she can speak a little(一点) Chinese. She is in Nanjing. Her parents are doctors. Kate is studying in a school near her home. She has classes from Monday to Friday. On Saturdays and Sundays, she often plays games with her Chinese friends. She loves China and her Chinese friends.
