题目内容
5.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 |
分析 必须采取措施来阻止河流进一步的被污染,是吗?
解答 答案:A Have/has/had to表示"不得不,必须"时,反意疑问句用don't/doesn't/didn't.不定代词Something作主语,反意疑问句用it.故选A
点评 考生要注意分析句中谓语动词的含义,有些动词既可以作为助动词,又可以作为实意动词.
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