Let me get this out of the way and say it before you think it, “In the world of grown ups, using a semicolon, in your writing, comes off as pretentious, and some might even call you a “jerk” for doing it. But the reality for students, taking the SAT and ACT, is that they have to face it head on, without any inhibitions. And then after they are done with standardized tests, they can live, life to the fullest, without ever having to use a semicolon ever again. In the meantime, here is how you will see the semicolon used on the ACT & SAT.
Punctuation on ACT & SAT English: Semicolons