১০০ দিনে বিসিএস প্রস্তুতি [বিষয়ভিত্তিক]১৮টি পরীক্ষায় এসেছেপ্রশ্ন ১৭Which of the following sentences is correct? ক The exhibition gave a plenty of idea about the recent developments in technology.খ The exhibition gave a plenty of ideas about the recent developments in technology.গ The exhibition gave plenty of idea about the recent developments in technology.ঘ The exhibition gave plenty of ideas about the recent developments in technology.উত্তর দেখুন