F: Do you have anything planned for the summer vacation Tony? ,M: Well, I'll go to the US with the exchange students. What about you Joan? ,F: I'd wanted to go to Singapore to stay with my aunt when the vacation begins. But the headmaster told me I should stay in the school to help the students from the US to choose which family to stay with. And act as their guide when they go sightseeing in Tokyo.
(A) M: So you planned to go to the US but you have to study for your IELTS exam, I'm sorry about that. (B) M: Excuse me, could you repeat the question? (C) M: So you have to stay at home and help your mother with her job, what about your trip to Singapore, then? (D) M: What a pity you have to stay in school, what about your trip to China?
B