Rational quantity : অকরণী; মূলদ;
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Conceal from(লুকানো) Do not conceal anything from me.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Senior to (বয়সে বড়): He is senior to me by two years.
Succeed in (সাফল্য লাভ করা): He succeeded in life.
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Idioms
Brown study (দিবাস্বপ্ন): The girl is absorbed in a brown study.
In vogue (চালু): This custom is not in vogue at present.
Milk and honey – (প্রাচুর্য)- He lives with milk and honey.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.