Sudden attack : অতর্কিত আক্রমণ;
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Appropriate Prepositions
Adjacent to (সন্নিহিত): His house was adjacent to the bridge.
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Heir to (উত্তরাধিকার পাওয়া): He is an heir to a vast property.
Look at (তাকানো): Students look at the blackboard.
Remedy for (প্রতিকার): There is no remedy for his misbehavior.
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Idioms
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Now and then (মাঝে মাঝে): He comes here now and then.
Tooth and nail (strongly, প্রবলভাবে)-He fought tooth and nail against his enemy.
Up to (পর্যন্ত) - I have done the exercises up to page 40.
Ups and downs (উত্থান পতন)- There is ups and downs in a man's life.