At seven Li Lei is at the bus stop. He's going to school. An old woman comes to him.

   Woman: Excuse me. Where's the police station?

   Li Lei: You can catch the No. 3 bus to Renmin Road. And then you must walk along Zhongshan Road and turn left on the second turning. The police station is next to the post office.

   Woman: I don't think I can get there. I'm from the Hongxing Farm. I come here to see my son. He works in the police station. He is a policeman. I don't know the way. Can you go with me?

  Li Lei: OK.

  Li Lei gets to school at eight ten. He's late, but he did a good thing. He's a good student.