Perpetrators : অপরাধী; কুকর্মকারী;
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Appropriate Prepositions
Abound with(ছেয়ে থাকা): They live in a region that abounds with oil.
Caution against(সাবধান): Take all cautions against the danger.
Guard from/against (রক্ষা করা): My parents always guard me from/against bad people.
Play on (বাজানো): They play on the piano.
Sorry for (দুঃখিত): He is sorry for his misdeeds.
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Idioms
Bad names (গালমন্দ—n) He called the man bad names.
Get rid of (মুক্তি পাওয়া): Try to get rid of the rogue.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.
Up to (পর্যন্ত) - I have done the exercises up to page 40.