ফ্রি সাপ্তাহিক মডেল টেস্ট১৯৭টি পরীক্ষায় এসেছেপ্রশ্ন ৬৩Which of the following sentences is correct?কUnfortunately, the train had departed by the time we were arrived.খUnfortunately, the train had departed by the time we arrived.গUnfortunately, the train departed by the time we have arrived.ঘUnfortunately, the train had departed by the time we arrive.উত্তর দেখুন