1. 选择合适的单词的适当形式补全对话。

be   do  what   at  player

A: does your mother do?

B: She is a police officer.

A: Cool! you want to a police officer?

B: No.

A: What do you want to be?

B: I'm so tall. And I'm good basketball.

A: Oh, you can be a basketball .

B: Great!