The washwoman was very old,as could seen from the wrinkls in
5个回答

我来帮你!

首先,你句子could seen应是could be seen.

as是关系代词,引导非限制性定语从句,修饰前面整个句子,同时as在从句中做主语.故后面并不是没有主语,as本身就是主语.类似的用法还有:As is known to us all,...As is expect,...此类定语从句,还可放在句首,如楼主的这句可变为:As could be seen from the wrinkls in her face and the way she hd to struggle to carry her big bundle of laundry,the washwoman was very old.