To find out young people think about the future of urban life a teacher in the US. asked

问题补充：

To find out young people think about the future of urban life, a teacher in the US. asked his students to think they would run a city of 50,000 people in 2025.

A. what; how

B. how; what

C. what; what

D. how; how

答案：

(答案→)A. what; how

B. how; what

C. what; what

D. how; how

解析：考查名词性从句。What引导宾语从句，在从句中作宾语，how引导宾语从句，在从句中作状语，故选A。