问题
选择题
“It’s twelve o’clock, I think I must be off now.” “Oh, really？ I ______ it at all.”
A．don’t realize
B．haven’t realized
C．didn’t realize
D．hadn’t realized
答案
答案：C
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“It’s twelve o’clock, I think I must be off now.” “Oh, really？ I ______ it at all.”
A．don’t realize
B．haven’t realized
C．didn’t realize
D．hadn’t realized
答案：C