I the time so quickly.
A. didn’t realize; had passed
B. don’t realize; passed
C. haven’t realized; passed
D. hadn’t realized; had passed
网友回答
(答案→)A. didn’t realize; had passed
B. don’t realize; passed
C. haven’t realized; passed
D. hadn’t realized; had passed
解析：句意：我没有意识到时间过得那么快。“没有意识到”这个动作发生在过去，而“时间过得那么快”是发生在“没有意识到之前”因此，用过去完成时。