Read the following conversation and answer the question. M: What do you think you'll be doing in five years' time, Carrie? W: I definitely won't be working as a car park attendant. I want to become an opera singer. I hope I'll be living in Milan. What about you, Frank? M: Unless I pass my exams, I'll probably serve rude customers in the restaurant. W: Come on. Don't be so sad. Cheer up, Frank. Question: Why is Frank so sad about his future planning? - Because he wants to be a singer but he cannot. - Because he won't be able to live in Milan. - Because he is afraid that he cannot pass the examination.
Because he is afraid that he cannot pass the examination.