Substandard : নিকৃষ্ট মানের; স্বাভাবিক মান অপেক্ষা হীনতর;
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Appropriate Prepositions
Attention to(মনোযোগ): He has no attention to his studies.
Consolidate for (শক্তিশালী করা): The four new companies consolidated for greater efficiency.
Count on/upon (নির্ভর, বিশ্বাস করা): Rahim count on (upon) my help.
Make up of (গঠিত): Village is made up of many homes.
Popte in, to (মার্জিত): We must be popte in our dealings. One should be popte to
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Idioms
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
Bear in mind (মনে রাখা): Always bear in mind that you are a daughter of a reputed person.
Bear in mind (remember— মনে রাখা —V): You should also bear in mind the additional costs of the mortgage.
Null and void (বাতিল): The deed has been null and void now.
See to (বিবেচনা করা)— Can you see to it that everyone gets a copy of this memo?