“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 |
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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 |