I would have come sooner but I _________ that you were waiting.

题目

I would have come sooner but I _________ that you were waiting.
A didn"t know B don"t know C hadn"t known D haven"t known

答案

答案是A请采纳,意思是我本应该更快些来的,但是我不知道你在这里等着,后面是过去时,所以前面不知道要用过去时