社交英语口语视频(中级) 11 Apologizing for a mistake

　　I have to apologize to you, Emma.

　　Why?

　　You know the book I borrowed from you?

　　Yes, what about it?

　　I can't find it anywhere.

　　Oh, really?

　　Yes, I looked all over for it.

　　I must have left it somewhere.

　　I finished reading it, so don't worry about it.