Answer:
The audio shows that the characters are in a very messy kitchen, which would help in representing a scenario for this scene.
Explanation:
The setting is the place where a scene takes place. In the case of the scene presented above, we could promote a representation of the scenario through the speeches of the characters present in the scene. In the sheriff's speech we can see that he is in the kitchen of a house, because he says that the environment where he is only has "kitchen things." In addition, we can see that the kitchen is completely messed up, when the County attorney says "here's a nice mess".
"Trifles" is a play presented in a single act, which presents the investigation into the murder of John Wright. The investigation takes place at John's own home, since his wife is the prime suspect.
 
        
                    
             
        
        
        
The question is asking to complete the said passage that ask what is the pleasure dome most likely represent in Kubla Khan, and base on my research, it represents evil or bad vibes. I hope you are satisfied with my answer and feel free to ask for more.
        
                    
             
        
        
        
Demonstrating bravery huh? It doesn't seem too hard to explain. Say, for example your talking about a fictional story, right? Depending on what that said character does, depends on his/her bravery for he/she did. If you can implement something similar to that in whatever it was you had in mind, it might help. 
I really hope this helps.