"I was reading the dictionary. I thought
it was a poem about everything."
                     --Steven Wright

Appropriate Preposition:

  • Offend against ( লঙ্গন করা ) You have offended against good manners.
  • Deal in ( ব্যবসা করা ) He deals in rice.
  • Obstacle to ( বাধা ) Poverty is often obstacle to higher studies.
  • False to ( মিথ্যাবাদী ) I cannot be false to my friend.
  • Mourn over ( শোক করা ) Don't mourn over the dead.
  • Open at ( উন্মুক্ত করা বা খোলা ) Open at page 20 of English book.

Idioms:

  • At stake ( বিপন্ন ) His life is at stake now.
  • ABC ( প্রাথমিক জ্ঞান ) Everybody must know at least the ABC of religion.
  • At a low ebb ( নিম্নমুখী ) His fame is at a low ebb now.
  • At random ( বেপরোয়া ; এলোমেলো ) He hit the ball at random.
  • Sink in ( আবদ্ধ হওয়া, ডুবে যাওয়া ) He sank in mud or the ship sank into the sea.
  • A black sheep ( কুলাঙ্গার ) Tom is a black sheep in their family