听力原文:M: Clara! How are you? I haven't heard from you for at least three years. What are you doing? W: I came back from Australia. Now I've opened a company. I heard from Miss Sue that you are getting married. Congratulations! M: Thank you! W: Why did you keep so quite about it? M: I'm sorry. I mean to tell you. But I couldn't find you by your previous address. W: When will the wedding be? M: January 1st W: I want to give you a present. What would you like? M: Let me see. Oh, a bunch of flowers will do. W: I see. Bye. M: Bye. How long hasn't he heard from Clara?