by ohthatpatrick Sun Jul 30, 2017 3:04 am
I think they're all out of OG1 (the green book that's tests 52-61).
You should be able to tell if something's fishy because the pg numbers / problem numbers won't match the right type of activity (LG/ LR / RC) if you're in the wrong book.
There is some language in the course workbook that tells you that the sets come from OG1, but it is famously easy to miss.