i think that something has to be done to stop our air from being _英语解答

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?

人气：462 ℃　时间：2019-09-27 20:15:40

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