1)
His father leaves his car in the street, doesn't he?
Does his father leave his car in the street?
Who leaves his car in the street?
Does his father leave his car in the street or in the garage?
Where does his father leave his car?
What does his father leave in the street?
2)
We have several thousand books in our home library, don't we?
Who has several thousand books in the home library?
How many books do we have in our home library?
Do we have several thousand books in our home library?
Do we have several thousand books in our home library or our school library?