when 和while引导的状语从句中有什么区别
问题描述：
when 和while引导的状语从句中有什么区别
答
when引导的句子可用瞬间和持续性动词while引导的句子动词一般是持续性动词My mother was cleaning the floor while(when)my father was tidying up the shelf.When(不能用while)he came in,we are talking loudly....