Demonstrations : উপপাদন;
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Appropriate Prepositions
Adapt for (উপযোগী করে নেওয়া): This book has been adapted for the children.
Certain of(নিশ্চিত): Jamal is certain of his success.
Covetous of(লোভী হওয়া): He is covetous of wealth.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
Play on (বাজানো): They play on the piano.
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Idioms
At a standstill (নিশ্চল, অচলাবস্থায়-adj.) The discussion is now at a standstill.
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.
Run a risk (ঝুকি নেয়া) — He ran a risk to save his life.
Slow coach (অলস): You cannot expect much from a slow coach.