This is one of the most important shortcuts you can know for the ACT® English Test and the SAT® Writing Test, and it can save you a huge amount of time. You can expect to encounter several punctuation questions testing it in one form or another on any given exam.
Comma + and/but = Period = Semicolon
These three constructions are grammatically identical, so if more than one of them appear in answer choices, you can automatically eliminate all of those options. (more…)