The school 'makes every effort' [=the school does all that it can] 'to help' new students become adjusted to college life.
His novel's surprise ending is not really convincing, but we'll give him 'an A for effort'.
He wanted to contribute in some way to the 'war effort'. [=to the effort to win the war]
(..) Missandei is the queen's most trusted advisor. Welcome to Dragonstone. Our queen knows it is a long journey. She appreciates the efforts you have made on her behalf. If you wouldn't mind handing over your weapons. Of course. ( men murmuring ) (..)2017 TvShow: Game of Thrones Title: The Queen's Justice Season: 7 Episode 3