Fiona was simultaneously (i) _________ by the magic of dreams and turned off by their potential to turn into nightmares. She wondered what they revealed about the human psyche. They were so (ii) ________ yet there had to be some logical impetus for their genesis. She often read books on dream analysis in order to better understand this topic, but the more she read the more she suspected that the purported "experts" in the field were merely (iii) ________

Ans:
The text talks about dreams -
The 1st blank is part of an idea that has opposites in it because of the word "simultaneous" - _______ & turned off. Hence the blank should be an opposite of turned off.
The 2nd blank is part of an idea which being contrasted because of the word "yet" - the dreams were crazy yet had to have some logic. Hence the blank should be filled with a word that is opposite to logical or synonymous to crazy/abstract.
The 3rd blank is at the end of a long sentence that is divided by a "but" in between which indicates the 2 ideas are contrasting each other. Hence the blank has to contrast with "experts" who are supposed to give the author a better understanding about dreams but aren't.

So, from the answer choices:
A,E,G for the 1st, 2nd & 3rd blank respectively