Proficient : দক্ষ, বু্যৎপন্ন;
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Appropriate Prepositions
Add to (বৃদ্ধি করা, যোগ করা): The doll-dance in the exhibition added to our pleasure.
At lunch (দুপুরের খাবারে): They were talking so much at lunch that their food went cold.
Feed with (কোনো কিছু খাওয়া): They feed the cow with grass.
Inferior to (নীচু/হীন): He is inferior to his neighbor.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
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Idioms
Bring to book (reproach-Start- ভর্ৎসনা করা) The father brought his son to book for his failure in the exam.
Back and forth (এদিক ওদিক) The mad man was running back and forth in the hospital.
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
Turn over a new leaf (begin a new phase of life, নবজীবন শুরু করা) —After his failure he turned over a new leaf.