English Wizard১টি পরীক্ষায় এসেছেপ্রশ্ন ১৮Choose the sentence with the correct appropriate preposition-কSomeone was knocking with the window.খSomeone was knocking for the window.গSomeone was knocking to the window.ঘSomeone was knocking at the window.উত্তর দেখুন