Harry's heart gave a horrible jolt. A test? In front of the whole school? But he didn't know any magic yet –– what on earth would he have to do? He hadn't expected something like this the moment they arrived. He looked around anxiously and saw that everyone else looked terrified, too. No one was talking much except Hermione Granger, who was whispering very fast about all the spells she'd learned and wondering which one she'd need. Harry tried hard not to listen to her. He'd never been more nervous, never, not even when he'd had to take a school report [i] home to the Dursleys saying that he'd somehow turned his teacher's wig blue. He kept his eyes fixed on the door. Any second now, Professor McGonagall would come back and lead him to his doom.
Then something happened that made him jump about a foot in the air - several people [ii] behind him screamed.
(Harry Potter and the Sorcerer’s Stone, by J.K.Rowling)
The best part is that the owner shares the same passion as the customers when it comes to buying parts [iii] for their cars. (pristineparts.com)
My own language using different suffixes for modifying noun, or adverb, verb or the sentence, when I come across [i]~[iii], it’s not easy to decide either these modify the previous noun phrase or they behave like adverb (or adjunct) to modify verb (or sentence, clause?). Can they be discerned either way, or are they ambivalent? Is it only dependent on, who the reader is, when a person reads?