问题补充：
--- Jane,
--- A policeman.
A. how is your brother?
B. what does your brother do?
C. where is your brother?
D. how old is you brother?
答案：
A. how is your brother?
(答案→)B. what does your brother do?
C. where is your brother?
D. how old is you brother?
解析：how is your brother? 你哥哥怎么样？ what does your brother do?你哥哥做什么工作？where is your brother?你哥哥在哪儿？how old is you brother?你哥哥多大了？根据下文，一个警察。可知选B，简，你的哥哥做什么工作？
