How does mans bite compare with winters in "blow, blow"

What language device is used in the highlighted text?

Which sentence is correctly punctuated? a. i haven’t found a new job, and i don’t plan to look for one until i have to. b. my work is piling up—day to day—and i can’t seem to get caught up. c. i know things could be worse (they have been in the past).

This is a set of words that begins with a preposition.