Which words from the passage below contribute most to the mood of the beginning of "The

Morning of June 28, 1948?"

"On the morning of June 28, 1948, I walked down to the post office in our little Vermont town to pick up the mail. I was quite casual about it, as I recall I opened the box, took out a couple of bills and a letter or two, talked to the postmaster for a few minutes, and left, never supposing that it was the last time for months that I was to pick up the mail without an active feeling of panic."

O mail, box, months
O morning, walked, casual
O letter, town, postmaster
O post office, Vermont, bills

morning, casual, Vermont, town, post office