I want to construction expression
She(A) is standing next to B.
in to this interrogative construction .
Who is A standing next to?
Now, for the expression
She is standing behind B.
I don't know what will be construction, when I try to convert the same way.
Who is she standing behind?
Is this expression correct? If yes, Are these expression right also
Who is he sitting on top of?
Who is she behind?(for the expression, She is behind B.)