阅读对话，选择正确的答案。
At a snack bar
Dad: What would you like?
Su Hai: I'm hungry. I'd like a pie.
Dad: What about you, Su Yang?
Su Yang: I'm not hungry. I'm thirsty. I'd like some orange juice.
Assistant: Sorry, there's no orange juice. Would you like some apple juice?
Su Yang: No, I don't like apple juice. Can I have some water?  
Assistant: Ok. What about you, sir?
Dad: I'd like some noodles and a cup of coffee.
Assistant: Ok.
Dad: How much are they?  
Assistant: Forty yuan.  
Dad: Here you are.
Assistant: Thank you very much.
【小题1】Where are they now?（  ）
A. At school.    B. In a shop. C. At a snack bar.
【小题2】Is Su Hai hungry? （  ）
A. Yes, she is.    B. No, she isn't. C. Yes, she isn't.
【小题3】How much are they? （  ）
A. Fifty yuan.    B. Forty-five yuan.    C. Forty yuan.
【小题4】Does Su Yang like orange juice? （  ）
A. No, she doesn't.    B. Yes, she does.    C. I don't know. (我不知道)
【小题5】What does Su Yang have at last(最终) ? （  ）
A. Some orange juice.    B. Some water.    C. Some apple juice.