根据答语选出正确的疑问词填空。
1. __________( Where / What) did he do there?
He went fishing.
2. __________ (Where / When) did you go over your holiday?
I went to Shanghai.
3. (What / Who) did Amy go with?
She went with her parents.
4. (When / How) did they go to Beijing?
They went to Beijing by train.
5. ( How/ What)was your holiday?
It was good.