বিসিএস জব সল্যুশন [১০ম - ৫০তম বিসিএস]১টি পরীক্ষায় এসেছেপ্রশ্ন ৬৪In which sentence is the word 'past' used as a preposition? কWriting letters is a thing of the past. খI look back on the past without regret. গI called out to him as he ran past. ঘTania was a wonderful singer, but she's past her prime. উত্তর দেখুন