Had she finished her homework, she ______ out.

• Third Condition এর নিয়ম অনুসারে:- If বা Had যুক্ত দুটি clause থাকে। - দুটি clause এর যেকোন একটিতে If/ had দিয়ে clause টি শুরু হবে।- If বা Had যুক্ত clause টি Past Perfect Tense হয়।- ২য় clause টি Past perfect Conditional (would have, might have, should have, could have) বসে।- Verb এর Past Participle form বসে।• Complete Sentence: Had she finished her homework, she would have gone out.Source: Advanced Learner's Communicative English Grammar & Composition By Chowdhury & Hossain.