ডেইলি কুইজ [২০০ দিন]১টি পরীক্ষায় এসেছেপ্রশ্ন ৪What is the purpose of the heading in a formal letter?কTo introduce the body of the letter.খTo establish the subject of the letter.গTo provide essential details such as date and address.ঘTo provide a personal greeting.উত্তর দেখুন