ব্যাংক মডেল টেস্ট [সাপ্তাহিক]৩২১টি পরীক্ষায় এসেছেপ্রশ্ন ১৯Identify the correct sentence.কIf the engineers have double-checked the bridge’s structural integrity, the collapse could have been prevented, and countless lives might have been saved.খIf the engineers has double-checked the bridge’s structural integrity, the collapse could have been prevented, and countless lives might have been saved.গIf the engineers had double-checked the bridge’s structural integrity, the collapse could prevent, and countless lives might save.ঘIf the engineers had double-checked the bridge’s structural integrity, the collapse could have been prevented, and countless lives might have been saved.উত্তর দেখুন