阅读下面对话，根据上下文补全对话内容。

A: , Ken?

B: I am reading The Old Man and the Sea by Hemingway.

A: Wow, you want to be a writer, don't you?

B: .

A: Great! ?

B: Well, I'm going to keep on writing stories.?

A: I want to be a doctor.

B: I believe our dreams will come true if we study hard!

A: .