企源知识库

I would have come sooner but I _____ that you were waiting.
A、haven’t known
B、hadn’t known
C、didn’t known
D、have known
【正确答案】：B
【题目解析】：B 我要知道你在等着，我很快就来了。你在等着——这个动作发生在过去，即与过去事实相反，故虚拟条件中的从句谓语用过去完成时态。