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

Appropriate Preposition:

  • Key to ( সমাধানের উপায় ) He has found out the key to his problem.
  • Justice to ( ন্যায় বিচার ) We should do justice to everybody.
  • Weak in ( কাঁচা ) He is weak in Mathematics.
  • Want of ( অভাব ) We have no want of money.
  • Clue to ( সূত্র ) Find out the clue to the mystery.
  • Despair of ( নিরাশ হওয়া ) Do not despair of success.

Idioms:

  • In no time ( শীঘ্র ) He will finish the work in no time.
  • be bad at ( দক্ষ না হওয়া )
  • A bed of roses thorns ( কন্টকময় জীবন ) Life is nothing but a bed of roses.
  • Take one to task ( তিরস্কার করা ) He was taken to task for negligence of duty.
  • Achilles heel ( দুর্বলতা বা ত্রুটি ) He is trying to hide but everybody knows his achilles' heel
  • Set free ( মুক্ত করা ) The prisoners were set free.