Up to now, Marin _____in the library for about two hours.A．readB．had readC．has b_刷题宝

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Up to now, Marin _____in the library for about two hours.

A．read	B．had read
C．has been reading	D．would read

上一题下一题 0.4难度单项选择更新时间:2015-02-05 08:54:02

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