---I don't suppose the police know who did it.
---Well, surprisingly they do. A man has been arrested and now.
A. has been questioned
B. is being questioned
C. is questioning
D. has questioned
网友回答
A. has been questioned
(答案→)B. is being questioned
C. is questioning
D. has questioned
解析：句意：上文，我猜警察不知道是谁干得。下文，出乎意料的是他们知道，一个人已经被捕并且正在被审问。表示现在正在进行的动作，用现在进行时，且“一个人”和“审问”之间是被动关系，故用被动语态，选B。