Bernard ignores the conversation because he knows his fate would be sealed even more if he spoke up.
Explanation:
In the conversation between Mond, John and Helmholtz he knows that Mond will have the upper hand and anything that Bernard might say about what he was willing to do against the new society by reading the texts and organizing people who fail even further. 
So he stays silent and only  talks up to beg Mond to reduce his sentence for his crime of doing it but his friends had until them pretty much spilled the beans and had engaged in a discussion about the things they were doing. 
 
        
             
        
        
        
Lightheartedness means cheerful, carefree ect.
This means the line "The sounds of water splashing and laughter echoed in the distance; Tim's friend's had gone for a late-night swim." is the phrase that is the correct answer, since it talks about the happy actions of Tim's friends.
Answer C.
        
                    
             
        
        
        
Good evening ladies and gentleman... because he’s addressing the public about how there ready for what’s to come
        
                    
             
        
        
        
Answer:
He feels society in general, including many members of the congregation, is more sinful now than ever.
Explanation:
"Sinners in the Hands of an Angry God" is a sermon written by the American Christian theologian Jonathan Edwards, preached to his own congregation in Northampton, Massachusetts, to profound effect,[1] and again on July 8, 1741 in Enfield, Connecticut. The preaching of this sermon was the catalyst for the First Great Awakening.[2] Like Edwards' other works, it combines vivid imagery of Hell with observations of the world and citations of the scripture. It is Edwards' most famous written work, is a fitting representation of his preaching style,[3] and is widely studied by Christians and historians, providing a glimpse into the theology of the First Great Awakening of c. 1730–1755.
This was a highly influential sermon of the Great Awakening, emphasizing God’s wrath upon unbelievers after death to a very real, horrific, and fiery Hell. [4] The underlying point is that God has given humans a chance to confess their sins. It is the mere will of God, according to Edwards, that keeps wicked men from being overtaken by the devil and his demons and cast into the furnace of hell - “like greedy hungry lions, that see their prey, and expect to have it, but are for the present kept back [by God’s hand].” Mankind’s own attempts to avoid falling into the “bottomless gulf” due to the overwhelming “weight and pressure towards hell” are insufficient as “a spider's web would have to stop a falling rock“. This act of grace from God has given humans a chance to believe and trust in Christ.[5] Edwards provides much varied and vivid imagery to illustrate this main theme throughout.
 
        
             
        
        
        
Cheese = Direct Subject
You = subject 
Like = verb