Answer:
B. to narrate past events
Explanation:
The verb tenses used in the following sentence from the story: "In the past they had sometimes been treated to three-legged creatures from Venus" are used to narrate past events.
This is because, events that have already happened are being narrated.
It would be B i hope this helps:)
Dialogue is a convo between two people and a monologue is when there is one person talking to themself.
Immediately after murdering Duncan, Macbeth goes to the courtyard to where lady Macbeth is waiting for him.