将下面的句子填入适当的位置，使对话完整。

A. How are you going to do that? B. Where are you going to take singing lessons? C. I want to be a singer. D. I'm going to start next week. E. Are you going to sing country music?

A: What are you going to be when you leave school?  
B: ①________
A: ②________       
B: No. I'm not. I'm going to sing rock music.
A: ③________      
B: I'm going to take singing lessons.
A: When are you going to start?  
B: ④________
A: ⑤________               
B: In New York.