when sb. do sth.和when sb. doing sth. when do sth. 和when doin

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.
qqsaturday 1年前 已收到1个回答 举报

xlb08 花朵

共回答了21个问题采纳率:100% 举报

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

1年前 追问

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qqsaturday 举报

哦。thanks a lot.
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