ফ্রি সাপ্তাহিক মডেল টেস্ট৩২১টি পরীক্ষায় এসেছেপ্রশ্ন ৩৯Identify the correct sentence.কNo sooner had I opened the window than a bird flown inside.খNo sooner had I opened the window than a bird flew inside.গNo sooner had I opened the window than a bird had flown inside.ঘNo sooner had I opened the window than a bird flee inside.উত্তর দেখুন