Know the rule.
See through the trap.
Don't choose what simply “sounds right.” Find the sentence's structure, name the relationship, and make a decision you can explain.
Grammar and writing are connected, but not identical.
College Board groups Boundaries and Form, Structure, and Sense under Standard English Conventions. Transitions and Rhetorical Synthesis belong to Expression of Ideas. This bank teaches both, while keeping those jobs distinct. See the official content domains ↗
All grammar & writing rules
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Recognize it. Then practice it.
Every practice question includes a strategy, a walkthrough, and an explanation for each answer choice. Difficulty labels are VPT estimates, not official College Board ratings.
Practice sentence boundaries →About this reference
Original explanations are organized around College Board's content domains. For further sentence-pattern examples, see Purdue OWL's sentence punctuation guide. The practice sets cover selected skills, not every possible grammar or writing question.