Could I ask you a question? It's important. 我能問你個問題嗎?非常重要。
Do you mind if we ask you a few questions? 你介意我們問你幾個問題嗎?
May I ask you a couple of questions? 我能問你幾個問題嗎?
May I ask you a question? 我能問你個問題嗎?
Sure. What would you like to ask me? 好的,你想問我什么?