Standard solution : প্রমাণ দ্রব্য;
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Appropriate Prepositions
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Effect of (প্রভাব): The effect of corruption is very harmful for our society.
Hard of (কানে খাটো বা কম শোনা): Ratan is a hard of hearing.
Hunger for (আকাঙ্কা): The teacher has a great hunger for knowledge.
Make up of (গঠিত): Village is made up of many homes.
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Idioms
At the eleventh hour (at the last moment-শেষ মুহুর্তে adv.) The patient was in a dangerous condition and the doctor came at the eleventh hour.
Breathe one’s last (decease, die- শেষ নিঃশেষ ত্যাগ করা, মরে যাওয়া) The man breathed his last in his native village.
Learn by heart (মুখস্থ করা)— He learnt the poem by heart.
Of course (অবশ্যই): Of course, you know what that meant.
Short cut (সংক্ষিপ্ত পথ)— He comes by this shortcut.