通读下面的对话，然后根据上下文补全对话内容。
A: Good afternoon, Miller!   ?
B: I’m drawing a horse.
A: A horse? Can you let me have a look?
B:       . Here you are.
A: Oh, the horse looks very nice. Do you often draw in your free time?
B:          .
A: Do you like drawing?
B: Yes. I like drawing very much.
A:          ?
B: Because it’s very interesting. And my art teacher is very kind to me.
A:          ?
B: I have an art lesson once a week.