Submitted by [deleted] t3_10flnp9 in Pennsylvania
LadyNorbert t1_j4xw7xw wrote
I guess I'm showing my age here, but what's a Keystone in this context?
Internal-Instance931 t1_j4y2ku6 wrote
Standardized test in high school.
LadyNorbert t1_j50kg27 wrote
Ah thanks. I graduated longer ago than I care to admit, and I don't have kids, so I haven't kept up on that sort of thing.
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