He left the key ______ he had been an hour before.A．whatB．thatC．whereD．which_刷题宝

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He left the key ______ he had been an hour before.

A．what

B．that

C．where

D．which

上一题下一题 0.64难度单项选择更新时间:2013-05-24 08:27:46

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