২০ দিনে ৪৭তম বিসিএস রিভিশন - Archived১টি পরীক্ষায় এসেছেপ্রশ্ন ৪Choose the correct passive form: They have to respect their elders.কTheir elders to be respected by them.খLet their elders to be respected by them.গTheir elders have to be respected by them.ঘLet their elders have to be respected by them.উত্তর দেখুন