he and she___each other since they were children,so nobody was surprised to hear they were married

题目

he and she___each other since they were children,so nobody was surprised to hear they were married
A knew B have known C had known D were known

答案

答案为C释义：他们从小青梅足马,听说他们喜结连理,人们一点都不惊讶.since（自从.）用可用于现在/过去完成时态中,从最后一个分句我们可以判断整句话的时态是过去时态,所以since在这里用于过去完成时态since引导的时...