Question

【题目】Sorry, I would have come earlier, but I ______ that you were waiting.

A.didn't knowB.hadn't known

C.don't knowD.haven't known

Answer 1

【答案】A

【解析】

考查时态。句意：我本应该早点来，但是我不知道你在等我。I would have come earlier是对过去的虚拟，but后面的内容是描述过去的事实，用一般过去时，故选A。