১০০ দিনে বিসিএস প্রস্তুতি [বিষয়ভিত্তিক]১টি পরীক্ষায় এসেছেপ্রশ্ন ২৩They recommended improving the security measures. (Make it passive)কTo improving the security measures was recommended by them.খTo improve the security measures were recommended by them.গThey recommended to improve the security measures.ঘThey recommended that the security measures should be improved.উত্তর দেখুন