问题补充：
. -----I don’t suppose the police know who did it.
-----Well ,surprisingly they do. A man has been arrested andnow.
A. has been questioned
B. is being questioned
C. is questioning
D. has questioned
答案：
A. has been questioned
(答案→)B. is being questioned
C. is questioning
D. has questioned
解析：可联系答.案.网客服索取。
