2 a What does your brother do?你哥哥是干什么的？

   He’s a policeman.他是一名警察。

   He works at a police station.他在警察局工作。

 b What does your sister do?你姐姐是干什么的？

   She’s a doctor.她是一名医生。

   She takes care of sick people.她照顾病人。

 c What does your father do?你爸爸是干什么的？

   He’s an astronaut.他是一名宇航员。

   He flies in a spaceship.他驾驶宇宙飞船。