We all have a part to _______ in the fight against crime．A．playB．takeC．playingD．_刷题宝

题干

We all have a part to _______ in the fight against crime．

A．play

B．take

C．playing

D．taking

上一题下一题 0.85难度单项选择更新时间:2015-03-27 02:10:57

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