Xiao Qing is a schoolboy. His brother works in a hospital of Beijing. This summer his brother lets him come to Beijing. Xiao Qing is very happy. He comes to the hospital for the first time. One evening, Xiao Qing's brother gives him a ticket for a football match. It begins in the Capital Stadium  at eight clock in the evening. Xiao Qing likes to watch football matches very much, but he doesn't know the way to the Capital Stadium. He asks a young man at the bus stop, "How much is the ticket to the Capital Stadium?" "Three yuan." Answers the young man. Xiao Qing finds only two yuan in his pocket. He has to run to the next stop. When the bus comes to the stop, he sees the young man again. He asks the young man, "Now how much is the ticket?" "Four yuan," the young man says with a smile. " You run in a contrary direction." Xiao Qing is a   _  and his brother is a   _  .
student; doctor doctor; student student ; worker worker; student