Scene 1
What does Banquo reveal in the opening soliloquy of this scene?
The witch's predictions came true, and he suspects that Macbeth had something to do with it.
Why is Macbeth worried about Banquo?
The witches predicted his son would be king and he is afraid Banquo might turn on him.
What does MacBeth do about Banquo?
He hires murderers to kill him and his son.