I'm guessing a dummy run is something that you use a test dummy to see how something will work, example a crash dummy were they put inside a car that crashes to a solid object . a trial run/procedure kind.
(hope this help)
Knapp’s model is interpreting all aspects of a relationship. You have to think about a relationship that corresponds or relates to the aspects, and how. For two, you have to find out which stage the relationship is in. Finally, for three you have to explain why it’s currently in this stage. I believe this is what they’re trying to ask.
Answer: Bierce uses a cynical tone to ridicule human behavior and society.
Explanation:
The character is a dynamic character if they change as a result of the conflicts in the story.