Authenticates : বিশুদ্ধতা প্রমাণ করা;
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Appropriate Prepositions
Adapt for (উপযোগী করে নেওয়া): This book has been adapted for the children.
Aware of(অবগত): I am not aware of his dishonesty.
Hostile to (বিরোধী বা বিরূপ ভাবাপন্ন): Nobody is hostile to you.
Stick to (দৃঢ়ভাবে লেগে থাকা): We should always stick to our decisions.
Taste for (রুচি; পছন্দ): He has a great taste for music.
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Idioms
From cradle to grave (দোলনা থেকে কবর পর্যন্ত): Everyone has to learn from cradle to grave.
Hush money (ঘুষ): He offered a hush money to disclose the file.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
Seventh heaven – (মহাখুশী) – I was in the seventh heaven when I heard the news of my BCS final result.
Steer clear of (avoid, দূরে থাকা)— You must steer clear of evil company.