Wang Bing is a 12-year-old boy. He and his parents live together. He likes sports very much and does well in sports.
One afternoon, he comes out of the classroom and sees his father waiting for him at the school gate. He is very glad and runs to his father.
"Dad, please don't wait for me next time. I can go home by myself. I have grown up," says Wang Bing.
"Let's go," says his father, "I'll cook supper and you can do your homework at home. Mum is still at work."
On their way home, Wang Bing sees some boys skating in a park. "Can I go to learn skating, Dad?" asks Wang Bing. "I'm sorry, my boy. You must go home and do your homework," answers his father, "but I can buy you an ice cream."
Then his father buys an ice cream for him. When Wang Bing wants to eat it, a fly (苍蝇) flies to the ice cream.
"Drive off the fly." says his father. "It's very dirty (脏的)." But Wang Bing says with a smile, "You don't let me skate, but can you let it skate for a while (一会儿)?"
