Rock breaks scissors. Scissors cut paper. Paper smothers rock.
Did you have a sheet of paper then?
Check these papers over.
Hand in your papers at once.
Who put this paper here?
He had access to the papers.
She ran out of paper.
What papers do you take in?
He handed in his paper.
When investigating the pH (acidic, neutral, alkaline) of a liquid, don't soak the litmus paper completely in the liquid but just put the end of the paper in it.