1. You're asking the wrong person.

　　你问错人了。

　　2. I've never given it much thought.

　　这事儿我从来没多想。

　　3. I don't think it's any of my business.

　　我觉得这事跟我没什么关系。

　　4. Your guess is as good as mine.

　　你要不知道，那我就更不知道了。

　　5. I don't have any idea what's going on.

　　我也不清楚是怎么一回事。

　　6. It's a long story.

　　说来话长了。

　　7. That's an interesting question.

　　这个问题挺有趣。

　　8. It's beyond me.

　　我也搞不清楚。

　　9.Something like that.

　　差不多吧!

　　10.Sort of.

　　有那么点儿吧!

　　11.I guess so.

　　我想是吧。

　　12.I can't say.

　　我说不准!