Mary has a great sports collection. She has 8 basketballs, 14 footballs,22 ping-pong balls, 5volleyballs and 18 baseballs. She doesn’t have a ping-pong bat, but she has 9 tennis rackets. Of all the sports, She likes tennis best. She likes sports very much, because she thinks sports are good for health. She often plays tennis and ping-pong with her friends after school.