Secondary data : গৌণ ডেটা;
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Appropriate Prepositions
Bark at(ঘেউ ঘেউ করা): The dog is barking at the strange woman.
Cause of(কারণ): Industry is the cause of your success.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Guard from/against (রক্ষা করা): My parents always guard me from/against bad people.
Yield to (নতি স্বীকার করা): I shall not yield to his temptation.
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Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Burning question - (গুরুত্বপূর্ন বিষয়): Poverty problem is a burning question of our country.
For good (চিরদিনের জন্য): He left the house for good.
To the point (সঠিক) - The boy answered the question to the point.