All convincing speakers must perfect the art of persuasion.
Someone who has perfected the art of persuasion would be highly skilled at convincing people of different things.
Internal; it says he suffered terribly from boredom and loneliness which has to do with himself
Answer:
The answer is likely to be either the first one or the last one.
The answers are
After that their manner changed a little toward me, although I was their friend against outsiders.
I was a friend, but I was never really one of them after they had read the citations, because it had been different with them and they had done very different things to get their medals.
These two are sentences because they are separated by peridods, commas only denote a smaller break in a long sentence. In these two sentences the author says that after learning how he got his medals the others were less enthused about them and started treating the narrator differently.
