读一读，选择合适的单词补全对话。

What  about  policeman  would  children

A: Janet, you like to be a cook when you grow up?

B: No.

A: do you want to be when you grow up?

B: I'm good at music and I love children. I want to be a music teacher and teach to sing songs. What you?

A: I want to be a . Because my father is a policeman.