PrepTopia | ACT Sentence Structure & Fragments

Sentence Structure
& Fragments

15 questions across 5 sub-skills — run-ons, fragments, relative clauses, subject-verb agreement, and modifiers. Modeled on real ACT English format with A/B/C/D and F/G/H/J answer sets.

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✓ 15 questions

✓ Real ACT letter sets

✓ Per-skill score chart

⚡ Quick Reference — 5 Sub-Skills

Run-OnRun-on / comma splice: two complete sentences cannot be joined by a comma alone — use a period, semicolon, or comma + conjunction

FragmentFragment: a group of words missing a subject, main verb, or both — cannot stand as a sentence

RelativeRelative clauses: use who/whom for people, which for non-essential info, that for essential info (no comma)

S-V AgreeSubject-verb agreement: the verb must agree with its true subject — ignore phrases between subject and verb

ModifierMisplaced modifier: an opening phrase must describe the grammatical subject of the main clause that follows it

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Sentence Structure& Fragments

Sentence Structure& Fragments

Sentence Structure
& Fragments

Sentence Structure
& Fragments