Choose an event from the play. Focus on the purpose it serves in the story. Consider how the story would change if that event was altered. Form your ideas into a paragraph of at least five sentences. Make sure to include supporting evidence from the play.
Some events to consider:
The weird sisters' predictions for Macbeth and Banquo
Macbeth's murder of Banquo
The appearance of Banquo's ghost at Macbeth's coronation dinner.