Commanding officer : অধিনায়ক অফিসার;
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Appropriate Prepositions
Abide with(সঙ্গে থাকা): If you would like to rest for a while, you can abide with me.
Absorbed in(মগ্ন): I am absorbed in my study.
Attentive to(মনোযোগী): He is attentive to his business.
Bar to(বাধা): Poverty is not a bar to happiness.
Indebted to (ঋণী থাকা): We are indebted to the great leaders of the country for their service.
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Idioms
Call in question (সন্দেহ করা): No one can call his honesty in question.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
In full swing (পুরোদমে): The school is in full swing after the vacation.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.
Yellow dog (হীন ব্যক্তি) - A yellow dog is always hated by all.