Air-space : বাতাবকাশ;
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Appropriate Prepositions
Break in (কথার মাঝে কথা বলা): As she was talking, he suddenly broke in, saying, ‘that’s a rat!’
Busy with(ব্যস্ত থাকা): Rahim is now busy with her homework.
Indifferent to (উদাসীন): Everybody is indifferent to my problem.
Inquire for (দেখা করতে চাওয়া): He inquires for the manager.
Run on (বিরতিহীন চলা): The bus is running on time.
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Idioms
At a standstill (নিশ্চল, অচলাবস্থায়-adj.) The discussion is now at a standstill.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.