题目内容：

听下面一段较长对话，回答以下小题。

1.Where does the conversation probably take place?

A. In a shop.

B. In a classroom.

C. In a canteen.

2.What do we know from the conversation?

A. The woman hasn’t used plastic plates and cups before.

B. Paper plates and cups have replaced plastic ones in the U.S.

C. The man is not interested in plastic materials.