1. We went to the library.
Where did they go?
Did they go to library or museum?
2.He is a driver.
Who is he?
Is he an engineer or a driver?
3. We were playing a game
What were they doing?
Were they swimming or playing?
4.They came to this place a long time ago.
What did they do long time ago?
Did they come to the place or play in the bedroom?
When did they come to this place?