English Wizard৩টি পরীক্ষায় এসেছেপ্রশ্ন ১৮In which sentence is the word 'since' used as a preposition?কক) I have not seen him since.খখ) Nine months have passed since I met him.গগ) Since he was tired, he could not wait for you.ঘঘ) Till now since his birth, he has not been taken care of by his parents. উত্তর দেখুন