___________ you work very hard, you cannot pass. (KPPSC 2018 paper)
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Answer: A. Unless
Explanation
The conjunction unless functions perfectly as a conditional negative meaning if not within this sentence structure. Substituting unless creates the correct logical requirement that hard work is mandatory to achieve passing results. Grammatical rules dictate that unless introduces negative conditions without requiring an additional redundant negative word. Conditional conjunctions are essential grammatical tools used to express cause and effect relationships in English. Standard competitive examinations frequently test candidate mastery of complex correlative and conditional conjunction rules. Grammar textbooks emphasize that until measures time whereas unless specifies strict conditional requirements.
Mastering these logical connectors is crucial for clear academic writing and professional communication standards. It prevents common grammatical errors in written examinations and formal correspondence across various industries. Language instructors use conditional sentence drills to help students improve syntactical precision and fluency. Option B is incorrect because until refers strictly to points in time rather than conditional requirements for passing. Option C is wrong since while indicates simultaneous actions rather than the necessary condition specified here. Option D is inaccurate because as if introduces hypothetical comparisons rather than factual performance conditions.
- Subject
- English
- Category
- English Grammar and Vocabulary
- Topic
- —
- Difficulty
- medium
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