Howtimeflies!It’salreadytwelve-优题课

题文

___How time flies!It’s already twelve o’clock.
___ Oh,really? I ______ it at all.

A．don’t realize	B．Didn’t realize
C．haven’t realized	D．hadn’t realized

科目英语题型单选题难度较难

知识点：时态辨析

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