Helpfulness : উপকারিতা; কাজেরতা;
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Appropriate Prepositions
Agree to(ব্যক্তি ছাড়া অন্যকিছুর সাথে একমত হওয়া): We cannot agree to your proposal.
Attention to(মনোযোগ): He has no attention to his studies.
Beg for(অনুরোধ করা): Maria begged the Superintendent for a seat in the school hostel.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Hinge on/upon (নির্ভর করা): The whole matter hinges upon this clue.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.
Up to (পর্যন্ত) - I have done the exercises up to page 40.
Without fail (অবশ্যই) - You must attend the meeting without fail.