选择合适的句子补全对话。

A. What a nice dream! B. What about you? C. What are you going to do? D. I'd like to be a doctor. E. What do you want to be in the future?

A: Hi, Hao Tian,

B: I'm going to play football. Do you want to join us?

A: Yes, of course. Hao Tian,

B: I want to be a football player.

A: . I want to help the sick people.

B: