What are you doing this evening?
你今晚打算做什么？
What are you doing at the weekend?
你打算周末干什么？
What are you doing at half-term?
你期中假打算干什么？
What are you doing? Are you out of your mind?
你在干什么？你瘋了嗎？
All right, who are you and what are you doing in my office?
喂，你是誰，在我的辦公室做什么？