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

Appropriate Preposition:

  • Free from ( মুক্ত ) He is now free from danger.
  • Key to ( সমাধানের উপায় ) He has found out the key to his problem.
  • Accompanied by ( সঙ্গী হওয়া ) He was accompanied by his father.
  • Lay by ( সঞ্চয় করা ) Lay by something for the old age.
  • Prevent from ( বারণ করা ; প্রতিরোধ করা ) I prevented him from going there.‌
  • Boast of ( গর্ব করা ) Do not boast of your wealth.

Idioms:

  • At one’s own sweet will ( খুশি মতো ) He still does it at his own sweet will.
  • At a stretch ( একটানা ) He can run ten miles at a stretch.
  • At least ( অন্ততঃ ) At least one hundred boys will come to school today.
  • Hue and cry ( শোরগোল ) The villagers raised a hue and cry to see the thief.
  • be up and doing ( উঠে-পড়ে লাগা )
  • At home ( দক্ষ ) He is at home in mathematics.