Excuse me.I I was blocking your way.
A. didn't realize
B. don't realize
C. haven't realized
D. wasn't realizing
网友回答
(答案→)A. didn't realize
B. don't realize
C. haven't realized
D. wasn't realizing
解析：句意：对不起。我(刚才)没有意识到挡了你的路。根据第二句后半部分的内容可知此处叙述的是过去的情况，表示的是说话之前没有意识到挡住了对方的路，所以用一般过去时。