Cloak and dagger : ষড়যন্ত্রের ও গুপ্তচরবৃত্তির নীতি;
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Appropriate Prepositions
Argue over (কোন বিষয়ে তর্ক করা): The kids are arguing over which TV program to watch.
Argue with, about(কথা কাটাকাটি করা): They always argue with me about tiny matter.
Ascend to (আরোহণ করা): karim began to ascend to the surface of wakefulness.
Ask about (কাউকে খোঁজ করা): Rahim asked about Karim.
Refer to (সিদ্ধান্তের জন্য প্রেরণ করা): The matter was referred to the Chairman for a decision.
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Idioms
Birds of a feather (persons of like disposition-একই পর্যায়ের লোক) Bird’s of a feather flock together.
Lose one’s heart (প্রেমে পড়া) — He lost his heart to the girl.
Salt of the earth (গুরুত্বপূর্ণ ব্যক্তিবর্গ) —The salt of the earth is remembered always.
To the brim (কানায় কানায়) - The river was full to the brim.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.