The news came as no surprise to me. I for some time that the factory was going to shut down.
A. had known
B. knew
C. have known
D. know
网友回答
(答案→)A. had known
B. knew
C. have known
D. know
解析：从for some time可知，用完成时态。从第一句“我对这消息根本不惊讶”可知，我在此之前早就知道了。动作know发生在e之前，故用过去完成时。