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?
问题描述：
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?
答
A
答
选A。something是个代词，在这里做从句的主语，谓语动词用单数，反问式当然要用dosen't了。
答
aa
答
A.doesn't it
I think 句型的反意疑问句，要以从句的主语和助动词决定的。本句的主语是something,对应是it
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
答
选B 我认为
因为 i think是形式主语
something是主语
答
A啦。