C2 Inversion, Emphasis & Discourse Structuring English Grammar Test 3 Advanced Proficiency Practice (IELTS TOEFL YDS)
Take your C2 English proficiency to the highest level with this advanced grammar test on marked theme, end-focus, contrastive emphasis, and discourse structuring. Includes 15 questions, ticked correct answers, and extremely detailed explanations for IELTS, TOEFL, and YDS.
• Each question has three options.
• The correct answer is marked with ✓.
• Focus on marked theme (non-neutral sentence openings), end-focus principle, contrastive emphasis, fronting, and advanced discourse organization.
RESULTS
#1. What the theory ultimately challenges ______ the long-held assumption of market neutrality.
#2. More significant than the statistical variance ______ the interpretative bias underlying the analysis.
#3. It is methodological transparency ______ ensures replicability in empirical research.
#4. Only by reframing the hypothesis ______ the contradiction be resolved.
#5. What renders the findings controversial ______ their implicit political implications.
#6. Central to the debate ______ the question of epistemological validity.
#7. Not until the full dataset was disclosed ______ the magnitude of the oversight become apparent.
#8. Such ______ the complexity of the model that even specialists struggled to interpret it.
#9. What the critics fail to acknowledge ______ that the framework was never intended to be predictive.
#10. Particularly revealing ______ the discrepancies between projected and actual outcomes.
#11. It was only through longitudinal analysis ______ the underlying trend became discernible.
#12. Little ______ the research team anticipate the ethical implications of their discovery.
#13. What appears marginal at first glance ______ decisive within the broader systemic context.
#14. Equally problematic ______ the absence of cross-cultural validation.
#15. What the study foregrounds most emphatically ______ the structural limitations of reductionist models.
📘 VERY DETAILED EXPLANATIONS
1. Nominal Clause as Subject → is ✓
“What the theory ultimately challenges” is a singular conceptual clause.
C2 rule:
Even if the complement contains plural elements, the verb agrees with the entire nominal clause.
This tests advanced subject recognition.
2. Comparative Fronting → was ✓
“More significant than X” is fronted for contrast.
True subject:
“the interpretative bias” (singular)
Agreement must follow the subject after inversion-like structure.
Advanced learners often incorrectly agree with “variance.”
3. Cleft Structure → that ✓
It + be + focused element + that-clause
C2 academic writing heavily uses clefts to control informational emphasis.
“which” cannot introduce a defining cleft clause in this structure.
4. Only + Prepositional Phrase → Inversion ✓
Only by reframing… can the contradiction be resolved.
Fronted restrictive condition → auxiliary inversion required.
This is a classic Band 9 writing device.
5. What renders… is ✓
Nominal clause singularity again.
The complement “their implications” is plural, but agreement depends on the subject clause.
This is structural hierarchy awareness.
6. Central to the debate is ✓
Marked theme: Prepositional phrase first.
True subject: “the question” (singular).
C2 grammar requires fast structural re-mapping.
7. Not until… did ✓
Negative time clause triggers inversion.
Past tense needed because event is completed.
No inversion = immediate C2-level error.
8. Such was ✓
Structure:
Such + be + subject + that-clause
Fixed emphatic academic construction.
9. What… is that ✓
Structure:
What + clause + is + that + clause
This is a double-clause structure common in argumentative essays.
10. Particularly revealing were ✓
True subject: “the discrepancies” (plural).
Fronted adjective phrase hides plural subject.
Agreement must match “discrepancies.”
11. It was only… that ✓
Emphatic cleft again.
“when” would incorrectly introduce temporal clause rather than cleft emphasis.
12. Little did ✓
Negative adverbial → inversion.
Base verb required after auxiliary “did.”
13. What appears… is ✓
Abstract singular clause.
This tests conceptual singularity at discourse level.
14. Equally problematic is ✓
True subject: “the absence” (singular).
Fronting can mislead learners into plural agreement.
15. What the study foregrounds is ✓
Nominal clause singular.
Even though “limitations” plural, verb agrees with “What-clause.”






