— What are you going to ____ when you grow up? — I’m going to be a singer. A. do B. be C

问题补充：

— What are you going to ____ when you grow up?

— I’m going to be a singer.

A. do

B. be

C. sing

D. does

答案：

A. do

(答案→)B. be

C. sing

D. does

解析：无