ফ্রি সাপ্তাহিক মডেল টেস্ট১টি পরীক্ষায় এসেছেপ্রশ্ন ৯Change the voice: The students were discussing the topic.কThe topic was discussed by the students.খThe topic were being discussed by the students.গThe topic was being discussed by the students.ঘThe topics were being discuss by the students.উত্তর দেখুন