Grammar question pls help its a test. its__ one thousand note.(a, an, the). they__ already finished the work (have, had)​

Write a summary of “tribal nations: climate change threatens traditional ways of life.”

What is implied in this sentence from mark twain's "the £1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.

Analyzing relationships how was the scientist work similar to the work of the keene high school students you read about in this section