Null and void : অকার্যকর; বাতিল; খারিজ; বৈশিষ্ট্যহীন; আইনত কার্যকর নয়;
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Appropriate Prepositions
Congratulate on(অভিনন্দন জানানো): They congratulated me on my brilliant success.
Creep up (বৃদ্ধি পাওয়া): The prices of are creeping up day by day.
Genius for (দক্ষতা): Nazrul had a genius for convincing girls.
Rejoice at/in (আনন্দ করা): Everybody rejoiced at/in his success.
Repent of (অনুতাপ করা): I repented of my past.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
Cut to the quick (মর্মাহত হওয়া): I was cut to the quick by his birds.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.
Up to (পর্যন্ত) - I have done the exercises up to page 40.