________ is boring for us ________ here with nothing to do.A．It; waitingB．It; to_刷题宝

题干

________ is boring for us ________ here with nothing to do.

A．It; waiting

B．It; to wait

C．That; waiting

D．That; to wait

上一题下一题 0.65难度单选题更新时间:2019-05-19 11:19:31

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