Macbeth Questions Act One, scenes 1-3: The first part of scene three sees a return of the witches

The first part of scene three sees a return of the witches.

• Carefully read their discussion of their attempt to take revenge on the sailor’s wife. What does this episode suggest about the extent and the limits of their powers?
• Macbeth’s entry is a shock because his first words echo those of the witches in scene one:
• So foul and fair a day I have not seen . What might this mean in a literal sense?
• What effect does it have on our initial response to Macbeth?