ফ্রি সাপ্তাহিক মডেল টেস্ট১টি পরীক্ষায় এসেছেপ্রশ্ন ৩৮Iron is the most useful metal. The positive form of the sentence is -কক) No other metal is as useful as Iron.খখ) very few metals is as useful as Iron.গগ) Very few metals are as useful as Iron.ঘঘ) No other metals are as useful as Iron.উত্তর দেখুন