题目内容：

.The robber ,----the bank clerk and run away ,was caught by the police yesterday A having killed
The robber ,----the bank clerk and run away ,was caught by the police yesterday
A having killed B killing C.killed

优质解答

答案为A.整个句子主语是The robber 谓语是was caught （被动语态）.having killed the bank clerk and run away 是分词词组做状语,所以不能选c,同时是过去加完成时态,所以不能选b.就剩下a了.