The candidate 'did his homework' [=studied the issues] before the debate.
She started her algebra 'homework'.
Please do/finish your 'homework'.
(..) I don't know what it smells like because I'm too young to drink it. I see. What have we here? STRICKLAND: Sports stats, interesting subject. Homework, Tannen? No, it ain't homework, because, I ain't at home. You got a real attitude problem, you know? One day I'll have you where I want you, (..)1989 Back to the Future Part II