(where)is the capital of American

问题描述:

(where)is the capital of American
为什么不能填where 要填what
顺便讲一下这两个的区别与用法?

where是对地点提问,回答如in the north-east of america.
what的话要回答Washington.
这里关键是American.如果是America,得用where.