DET Bengali / বাংলা

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The phrase "It is a deal" signals agreement, often in negotiations or transactions, showing mutual consent to agreed terms.

"Know something by heart" means to memorize something completely and recall it without notes. Historically, the heart was seen as the center of memory and emotion, symbolizing deep, prompt-free recollection.

Articles define if something is specific or general. English has two articles: definite and indefinite. Knowing how and when to use them is essential to mastering English. "The" is used for specific nouns known to the reader.

The perfect progressive tense shows an action that began in the past, continued for a time, and may still be ongoing. Form: "have/has been" + present participle. Emphasizes duration or continuity.

Expressing gratitude builds strong relationships and a positive atmosphere. Saying "thank you" is a simple, effective way to show appreciation in many situations.

"Beats me" is an informal English phrase meaning "I don't know." It's used to show genuine uncertainty. Its exact origin is unclear but may relate to the idea of being puzzled or overwhelmed.

Please provide the content for "Effective Speaking Strategies for the Duo" so I can process it according to your instructions.

Understanding "while" and "during" helps with expressing time. "While" is a conjunction showing two actions happening at once and includes a subject and verb (e.g., She read a book while). They serve different grammatical roles.

"While" is a conjunction used to link ideas by indicating simultaneous actions or contrast. It shows that two actions occur at the same time, helping express parallel events.