Answer:
The times gone past; the good old days. as taken from ask.com 's dictionary. perhaps also "for old time's sake" (for the sake of Auld Lang Syne)
Metaphor
Because it compares two things without using like or as
<span>A. (9) Sadly, even after that water is found, only some of its clean and safe enough to drink.
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He tells us that the mind can make its own hell out of heaven
