What/did/see/they?
What did they see?
go/she/Where/did?
Where did she go?
he/did/Where/go?
Where did he go?
he/see/What/did?
What did he see?
Did they like it?
Yes, they liked it./ Yes, they did.
Did she like it?
Yes, she liked it./ Yes, she did.
Did he like it?
No, he didn't like it./ No, he didn't.
What/do/did/she?
What did she do?
did/Where/they/go?
Where did they go?