১৪০ দিনে ৫১তম বিসিএস প্রস্তুতি১টি পরীক্ষায় এসেছেপ্রশ্ন ২৬In which sentence below, the word, "Past" is being used as preposition?কক) They were walking about the past with full emotion. খখ) In the past, they were walking in the morning. গগ) They walked past me without speaking. ঘঘ) Noneউত্তর দেখুন