1) Mary plays the piano well.
Does Mary play the piano well?
Does Mary play the piano or drum well?
Mary plays the piano well, doesn't she?
Who plays the piano well?
How does Mary play the piano?
2) We love Maths.
Do we love Maths?
Do we love Maths or English?
We love Maths, don't we?
Who loves Maths?
What do we love?