Answer:
Be well rested so you can do your best.
We debated for an hour, but still his reasoning eluded me.
It is called the diction.
Angst, in writing, is like a dark story. One that has a sad, dark, etc. plot to it. On the other hand, tone is how a writer feel towards a topic.
Answer:
1) D
2) C
3) A
4) B
5) C
Explanation:
I took my best guess based off of what I see, but you didn't say which part was underlined, which makes it harder for me to be sure. I'm happy to help, but you need some more detail here luvv :)