1. It's nothing.

　　小事情；不足挂齿。

　　2. It's a long story.

　　说来话长。

　　3. It's about time.

　　时间差不多了。

　　4. It's incredible.

　　难以置信！

　　5. It's hard to say.

　　难说。

　　6. I can't imagine why.

　　我想不通为什么。

　　7. That can't be.

　　不可能。

　　8. That's really something.

　　真了不起。

　　9. Are you sure?

　　你确信吗？

　　10. Are you crazy?

　　你疯了吗？