Question

Which word in this sentence is a preposition?
I left my purse at the store.

Answer 1

The answer is at.

Here are a couple of preposition examples.

"in, of, to, at, by, for, with, under, above, into, onto, upon, about, behind, beside, before, after, towards, inside, outside, below, around"

Answer 2

at

Step-by-step explanation: