His sister had a bad cough,didn`t she?可不可以把 didn`t she 换成 hadn·t she

问题描述:

His sister had a bad cough,didn`t she?可不可以把 didn`t she 换成 hadn·t she

不可以.这里的had 不是所属的“有”,何时翻译为“得了”或“患了”,反义疑问句,要用对应的过去式助动词did,前肯后否.因此,不可改.