Something has to be done to stop the rivers from being further polluted, ?A．_刷题宝

题干

Something has to be done to stop the rivers from being further polluted, ?

A．doesn’t it

B．hasn’t it

C．does it

D．has it

上一题下一题 0.64难度单项选择更新时间:2014-06-26 11:16:52

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