“It’s twelve o’clock I think I must be off now.” “Oh really？ I it at all.”A. don’t rea

问题补充：

“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：

A. don’t realize

B. haven’t realized

(答案→)C. didn’t realize

D. hadn’t realized

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