I would have come earlier but I that you were waiting for me. A. didn’t knowB. hadn’t k

问题补充：

I would have come earlier, but I that you were waiting for me.

A. didn’t know

B. hadn’t know

C. would have known

D. haven’t known

答案：

(答案→)A. didn’t know

B. hadn’t know

C. would have known

D. haven’t known

解析：因为would come earlier是与过去事实相反的虚拟语气，而后面分句表示的是事实：当时我的确不知道…所以用一般过去时，选A。