Answer:
American is a country that is located in the United States of America/USA
It means unwillingness because you refuse which you are not willing to do it
I'm not too sure about this. However, I would say that it is Ok to say attached is the assignment. It seems wrong, but to make it seem more natural, maybe try adding extra words like requested.
From 500 A.D to 900 drama was almost unheard of outside of churches. People didn't care much for it up until after 900 A.D.
