问题
选择题
—Time flied before we knew it! It is already 12 o'clock.
—Oh, really? I _______ it at all.[ ]
A. haven't realized
B. didn't realize
C. hadn't realized
D. don't realize
答案
答案：B
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—Time flied before we knew it! It is already 12 o'clock.
—Oh, really? I _______ it at all.[ ]
A. haven't realized
B. didn't realize
C. hadn't realized
D. don't realize
答案：B