Vocabulary and Grammar The following question is based on your reading of Macbeth, Act III. Which of the following sentences has correct subject-verb agreement? a. Lady Macbeth, mistress of many servants, walk to the banquet hall. B. When approaching the palace, Banquo, not Fleance, are killed. C. Fleance, without Banquo, escape. D. When he first enters the banquet hall, Macbeth appears cheerful.