The candidate 'did his homework' [=studied the issues] before the debate.
She started her algebra 'homework'.
Please do/finish your 'homework'.
(..) Sadly, that's not a metaphor. Stop! You guys we have only been here one semester, and we're already becoming jaded. Before Ben was our homework, he was a real human being with a job and a wife and a son Eric, who's gonna be here tomorrow. Fine. (..)2010 TvShow: Scrubs Title: Our Thanks Season: 9 Episode 13