am,is,are是be动词的三种现在时形式,和不同的主语搭配,表示的意义相同.主语是I,和am搭配;主语是you,they,we,和are搭配;主语是he,she,it时和is搭配 所以他在做什么就成了what is he doing,同样也可以说what is she/it doing?
What is he doing?如果是现在在干嘛,就是:What is he doing now?希望采纳
译英语
What is he doing? 他在干什么? He is studying. 他在学习 He is doing homework. 他在做作业.
What's he doing? He is doing his homework.望采纳@
他们在做什么?What are they doing?
干什么?==你在干什么?What are you doing?干什么?==你是干什么的?What do you do? 干什么!==质问情景翻译:What's up!
What's he doing now? 祝楼主更上一层楼
你好!他是做什么工作的 What does he do
翻译为:他在做什么?她在跳绳.What is he doing? She is jumping rope.