问题
选择题
I would have come earlier, but I ________ that you were waiting for me.
A．hadn’t known
B．didn’t know
C．would have known
D．haven’t know
答案
答案：B
这题考查时态的用法：从前面的would have come earlier“我本来可以来得更早”，说明过去没能早来，是因为过去不知道你在等我，用过去时。选B。