Backward class : অনুন্নত সম্প্রদায়;
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Appropriate Prepositions
Argue over (কোন বিষয়ে তর্ক করা): The kids are arguing over which TV program to watch.
Arrange for(ব্যবস্থা করা): We have arranged everything for our study tour.
Play at (খেলা): I do not play at cards.
Subject to (সাপেক্ষে): The man was appointed subject to the approval of the chairman.
Work for (কারো জন্য কাজ করা): She works for a construction company.
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Idioms
Acid test (অগ্নি পরীক্ষা): You must succeed in the acid test of the time you live in.45
All at once - (হঠাৎ): I feel terribly sleepy all at once.
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.
Gift of the gab (বাকপটুতা): An advocate should have the gift of the gab.
Lump sum (এক কালীন) — He gave us lump sum money.