听力原文：W: I really can’t stand the way David controls the conversation all the time. If he is going to be at the party, I just won’t come. M: I am sorry you felt that way. But my mother insists that he come. Q: Why is David being invited to the party? (17) A．To make the woman angry. B．To please the man's mother. C．David is the man's good friend. D．David is good at carrying on conversation.