Prehistoric : প্রাগৈতিহাসিক;
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Appropriate Prepositions
Angry with(কারো সাথে ক্রুদ্ধ হওয়া): The teacher was very angry with the students.
Apart from(ছাড়া, ব্যতীত, দূরে): They pave apart from each other.
Ascend from (উপরে ওঠা): Rahim watched the mist ascending from the valley.
Catch at(ধরা): A drowning man catches at a straw.
Noted for (বিখ্যাত): She is noted for dancing.
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Idioms
All in - (পরিশ্রান্ত): I was all in after the meeting.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.
Up-to-date (আধুনিক) - Now-a-days ladies are very up to date.