What on earth are you doing?

你究竟在干什么？

《牛津词典》

What are you doing this evening?

你今晚打算做什么？

《牛津词典》

What A levels are you doing?

你在准备哪些科目的高级证书考试？

《牛津词典》

"Who are you?" "What do you want?" "Why are you doing this?" James, let's not play with our food.

VOA: standard.other

And then when everyone says, " "Oh fine. Oh great. Oh terrific", then we are asked "How are you doing?"

每个人都说，“很好，棒极了，妙不可言，当我们被问到“你好吗？“时“

哈佛公开课 - 幸福课课程节选

You can answer to this question, someone says, "Well, what are you doing? Are you still here at school?"

当有人问你，“嗯……你在做什么呢？你还在学校吗？”你就可以回答了，

I'm about to 课堂 - SpeakingMax英语口语达人

And the other half of the questions were, good golly, why aren't you doing that.

WHITEHOUSE: Press Briefing

Mr. LEONARDO BLAIR (Freelance Reporter, New York Post): What are you doing coming from that car?

NPR: Gates' Arrest All Too Familiar For Black Reporter

Sergeant GILBERT ROSA (Recruiter, U.S. Army): (On the telephone) Hello, how are you doing, ma'am?

NPR: Army Recruiting Gap May Force Compromises