13. A) The man regrets being absent-minded.

　　B) The woman saved the man some trouble.

　　C) The man placed the reading list on a desk.

　　D) The woman emptied the waste paper basket.

　　答案：

　　B) The woman saved the man some trouble.

　　原文：

　　13.M: I wish I hadn t thrown away that reading list!

　　W: I though you might regret it. That s why I picked it up from the waste paper basket and left it on the desk.

　　Q: What do we learn from the conversation?