প্রাইমারি ফুল মডেল টেস্ট৪১৯টি পরীক্ষায় এসেছেপ্রশ্ন ৬Choose the correct sentence.কEach of the books on the shelf are very old. খEach of the books on the shelf were very old. গEach of the books on the shelf have very old. ঘEach of the books on the shelf is very old. উত্তর দেখুন