This site explains those abbreviations.
https://www.shurley.com/pdf/hs/abbreviations/level_7_abbreviations.html
My daughter is working on Fragments and Correcting Run ON Sentences by SCV, SCS, and SS and she did not bring home her book. I have no idea what SCV and SCS and SS means! Can you please help?
2 answers
http://www.shurley.com/pdf/hs/abbreviations/level_7_abbreviations.html