听力原文:M: Linda, there are many important guests tonight. W: Why? M: To tell the truth, today is tile 30th anniversary of the wedding for our parents. W: Really? I don't know. M: What are we going to send them? W: I've no idea. What about you? M: Oh, I want to send them to go traveling, and they never go out to travel together. W: You are very thoughtful. M: Shall we book the tickets for them? W: Wonderful! Why are there many important guests tonight?