How to use "absence" in a sentence

Sentences

He spent an hour and a half in his library, paging through legal casebooks, boning up on precedents for the exhumation of a body that, as the court had put it, "was to be disinterred in the absence of a pressing legal need, solely for humane reasons, in consideration of certain survivors of the deceased." Elliot didn't think Harold Kennebeck would give him any trouble, and he didn't expect the judge to request a list of precedents for something as relatively simple and harmless as reopening Danny's grave, but he intended to be well prepared

As far as Elliot was concerned, the absence of ID was more sinister than a collection of patently false papers would have been, because this absolute anonymity smacked of a secret police organization.

Like an old athlete back on the playing field after a long absence, testing his reflexes, taking pride in the fact that his old skills are still there."