Read the excerpt from act 4, scene 1 of The Tragedy of Macbeth. The witches have gathered around their cauldron, and they are beginning to create a potion.First Witch. Thrice the brinded cat hath mew’d.Second Witch. Thrice and once the hedge-pig whined.Third Witch. Harpier cries ’Tis time, ’tis time.