What keep earth from falling into the sun?

In “we wear the mask,” which message is conveyed by dunbar’s repetition of the phrase “we wear the mask”?

What response does lincoln hope to elicit from his listeners with these words from his gettysburg address "we gave to come dedicate a portion of that field, as a final resting place for those who here gave their lives, that that nation might live. it is altogether fitting and proper that we should do this

Which type of pronoun clearly shows what is being referred to a specific person place or thing