ExplanationThe semicolon trigger tells you the two parts of the sentence agree; since the blank is describing the road, you need a word that means twisted. Both abbreviated and fleeting are nearly the opposite of what you’re looking for, so eliminate choices (A) and (C).
Neither invigorating, which means energizing, nor immense, which means huge, is supported by the sentence, so eliminate choices (B) and (D). Both serpentine and tortuous can mean twisted,
so choices (E) and (F) give you appropriate, equivalent sentences.
_________________
SandyIf you found this post useful, please let me know by pressing the Kudos ButtonTry our free Online GRE Test