Choose the correct alternative to fill in the blank.
If she ________ not interested, we ________ vacant the proposal.

Correct option is B

✔️ The correct option is (b) is, will.
Explanation: The sentence expresses a real and possible future event, which uses the first conditional.
Grammatical Rule Used:
First Conditional Structure
· Structure: If + present simple, will + V1
· Use: To talk about real possibilities or likely events in the future.
Hindi Explanation:
✔️ First Conditional का प्रयोग उन स्थितियों में होता है जहाँ कोई भविष्य की घटना वास्तविक और संभव होती है।
✔️ इसमें If clause में Present Simple और Main clause में “will + verb” प्रयोग होता है।
उदाहरण:
· If he studies, he will pass.
❌ Meanings of the other options:
· (a) is, had – Tense mismatch.
· (c) was, have – Wrong tense pairing.
· (d) is, would – Second conditional, used for unreal or hypothetical conditions.