৫১তম বিসিএস ফাইনাল মডেল টেস্ট ও রিভিশন২টি পরীক্ষায় এসেছেপ্রশ্ন ৯৯Which one is grammatically correct?কক) Had he been presented there, he would put an end to the happenings.খখ) If he had been presented there, he would have put an end to the happenings.গগ) If he has been presented there, he would be put an end to the happenings.ঘঘ) If he had presented there, he would put and end to the happenings.উত্তর দেখুন