I _____ his telephone number. Had I known it, I would have rung him up.A．don’t k_刷题宝

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I _____ his telephone number. Had I known it, I would have rung him up.

A．don’t known	B．didn’t know
C．hadn’t known	D．haven’t known

上一题下一题 0.64难度单项选择更新时间:2014-01-07 08:30:51

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