i think that something has to be done to stop our air from being polluted,___________?

i think that something has to be done to stop our air from being polluted,___________?
A.doesn't it B hasn't it C don't they D haven't they
选什么?为什么?
英语人气:642 ℃时间:2019-09-27 20:15:40
优质解答
A,一般第一人称反义疑问句用从句中的提问,陈述部分有have to +v.,疑问部分常用don't +主语
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