পেট্রোবাংলা প্রিলি ও লিখিত সমন্বিত প্রস্তুতি [Archived]১টি পরীক্ষায় এসেছেপ্রশ্ন ১১What would have happened if _____________কthe plane has been delayed?খthe plane have delayed?গthe plane would been delayed?ঘthe plane had delayed?ঙthe plane had been delayed?উত্তর দেখুন