Answer:
He recalls a war, a battlefield, with soldiers maimed and dying for Jonas. Jonas is a young guy in the memory who offers another severely injured soldier water and then remains with him until he dies. Jonas is hurting, and the pain he's in is unbearable.
The subordinate clause in this sentence is 'Since I stopped vacuuming', and it is used as an adverb in this sentence, the adverb of time.
After Macbeth gets the prophecy he now thinks he will be king. Macbeth now wants to be king and he thinks the only way to do that is to kill King Duncan. After Banquo gets the prophecy he does not desire to know anymore about it. Banquo does not take what the witches said seriously. Macbeth is greedy and desires to know more, and Banquo takes it as a joke. Macbeth is more greedy than Banquo, and Banquo is more appreciative.
After the prophecy they both become suspicious of each other. Macbeth killed King Duncan and Banquo questions how the prophecy came true. Macbeth thinks Banquo knows that he killed King Duncan so he then plots to kill him.