Something has to be done to stop the rivers from being further polluted,       ?
A．doesn’t itB．hasn’t itC．does itD．has it
A

試題分析：考查反意疑問句。Have/has/had to表示“不得不，必須”時，反意疑問句用don’t/doesn’t/didn’t。不定代詞Something作主語，反意疑問句用it。故選A。
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