When she entered the police station, she recognized the man who her at once．
A. was attacking
B. attacked
C. had attacked
D. would attack
网友回答
A. was attacking
B. attacked
(答案→)C. had attacked
D. would attack
解析：注意时间状语When she entered the police station说明动作与过去有关，动作attack发生在recognize之前，即过去的过去，用过去完成时。句意：当她进入警察局时，她立刻认出之前袭击她的那个男人。