NTRCA ফুল মডেল টেস্ট৪টি পরীক্ষায় এসেছেপ্রশ্ন ৪৭Which 'since' is a conjunction?কHe has stayed in Dhaka since 2015.খSince he was sick, he didn’t attend the class.গI have not eaten anything since morning.ঘShe went abroad last year and hasn’t called me since.উত্তর দেখুন