I. EXAMPLES: You forgot to bring your homework again. How come? How come your little sister is so angry? How come we were not invited to the party? II. DIALOGUES: A: Are you going to your sister’s wedding? B: I decided not to go. A: How come you’re not going? B: Because I’m afraid that if I go I’ll catch the bouquet of flowers and then I’ll have to get married. A: Don’t be silly. Just make sure you don’t catch it. B: Hey, that’s a good idea. I never thought of that.