when sb. do sth.和when sb. doing sth. when do sth. 和when doing sth.区别和用法
问题描述：
when sb. do sth.和when sb. doing sth. when do sth. 和when doing sth.区别和用法
务必简单明了.
答
when sb.do sth 是说当某人做某事,也就是时常做的,请看Does
when doing sth 是说某人正在做某事,不一定是习惯做的.强调“正在”,请看Doing
那给你举例子好了.
She usually open the door when she watchs TV
She opened the door when she watching TV哦。thanks a lot.