What is singular possessive, plural, and plural possessive of alumnus?

Which excerpt from tinker v. des moines shows how precedent support an argument? a. "as we shall discuss, the wearing of armbands in the circumstances of this case was entirely divorced from actually or potentially disruptive conduct by those participating in it. it was closely akin to 'pure speech' which, we have repeatedly held, is entitled to comprehensive protection under the first amendment. cf. cox v. louisiana, 379 u.s. 536, 555 (1965); adderley v. florida, 385 u.s. 39 (1966)." b. "while the absence of obscene remarks or boisterous and loud disorder perhaps justifies the court's statement that the few armband students did not actually 'disrupt' the classwork, i think the record overwhelmingly shows that the armbands did exactly what the elected school officials and principals foresaw they would." c. "i, for one, am not fully persuaded that school pupils are wise enough, even with this court's expert from washington, to run the 23,390 public school systems [n4] in our 50 states." d. "under our constitution, free speech is not a right that is given only to be so circumscribed that it exists in principle, but not in fact. freedom of expression would not truly exist if the right could be exercised only in an area that a benevolent government has provided as a safe haven for crackpots."

Choose the types of characters an author may choose to create

The major was a little man with upturned mustaches. he had been in the war in libya and wore two wound-stripes. he said that if the thing went well he would see that i was decorated. i said i hoped it would go well but that he was too kind. i asked him if there was a big dugout where the drivers could stay and he sent a soldier to show me. i went with him and found the dugout, which was very good. the drivers were with it and i left them there. what effect does hemingway’s limited use of adjectives have? it slows down the narration by interrupting the action. it makes the few descriptive words he does use more vivid and forceful. it makes the narrator seem powerless and insincere. it prevents the readers from filling in the details with their own experiences.