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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for H.S. requirements:

SCI: H.S. requirement
SCIS: H.S. requirements
USHISTORY: Required H.S. course, often
ENG: Required H.S. class
ENG: H.S. requirement
ALG: H.S. math requirement, usually
CPR: ___ training (requirement for H.S. graduation in most states)