You should always finish your homework.
Don has just finished eating his dinner and goes up to his room.
Don wants to get ready for school the next day.
Don opens his textbooks and studies them, then completes his homework assignments for the week.
Don starts going thru is his clothing to pick out the perfect matching outfit to wear to school.
Don gets a good grade in all his classes.
Don forgets to do his homework and gets a low mark from his teacher.