৫১তম বিসিএস ফাইনাল মডেল টেস্ট ও রিভিশন১টি পরীক্ষায় এসেছেপ্রশ্ন ১৪In which of the following sentence 'all' is used as noun?কক) All men are mortal. খখ) He was left all alone in the vast sea.গগ) All is well that ends well. ঘঘ) He sacrificed his all for the welfare of his children.উত্তর দেখুন