英语不定式的被动语态问题是"are there any more clothes to be washed "asked mum.还是"are there any more clothes to wash?"asked mum.为什么,涉及什么语法知识

问题描述:

英语不定式的被动语态问题
是"are there any more clothes to be washed "asked mum.还是"are there any more clothes to wash?"asked mum.
为什么,涉及什么语法知识