খাদ্য অধিদপ্তর নিয়োগ প্রস্তুতি১টি পরীক্ষায় এসেছেপ্রশ্ন ৩৬Change into a compound sentence:Although he is rich, he is not happy.কHe is rich but he is not happy.খHe is rich so he is not happy.গHe is not happy and he is rich.ঘHe is not happy although he is rich.উত্তর দেখুন