鱼啊鱼能做汤:除了老师在视频中讲到的内容,补充一些(欢迎指正):
①当陈述部分的主句是I suppose, I think, I believe等结构时,反意问句部分一般与that分句中的主谓保持对立关系。
如:I suppose that he is just joking, isn't he?
②当陈述部分为I am...结构时,附加疑问句一般用aren't.
如:I am late, aren't I?
③当不定式短语,动名词短语,或者其他短语作陈述句部分的主语时,附加疑问句的主语通常用it。
如:Doing morning exercises has helped to improve her health, hasn't it?