Out of the given alternatives given choose the most appropriate option.
__________ you work hard, you will fail in exam.

Correct option is C

The correct option to fill in the blank is (c) Unless.
• Explanation:
– The sentence gives a negative condition: if you don’t work hard, you will fail.
– “Unless” expresses this exact idea, meaning "if not".
• Grammatical rule used:
– Use “ unless” to introduce a conditional clause that implies the negative of "if".
• Explanation in Hindi:
– “Unless” का अर्थ होता है “यदि नहीं”, और इसका प्रयोग नकारात्मक शर्तों को व्यक्त करने के लिए किया जाता है।
• Example:
– Unless you leave now, you’ll miss the train. ✅
Meanings of the other options:
• (a) Or ❌
– English: Used for options or consequences, not for conditional clauses.
– Hindi: या
• (b) Until ❌
– English: Refers to time – not a condition.
– Hindi: जब तक
• (d) Providing ❌
– English: Means “if” but less commonly used and doesn’t match negative context.
– Hindi: यदि (आम तौर पर सकारात्मक स्थिति में प्रयोग होता है)