Troops move in after gunmen open fire in Indian-controlled Kashmir

What is the significance of the word 'Hello' in communication?

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In what contexts might you use the greeting 'Hello'?

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How does the tone of voice affect the meaning of 'Hello'?

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Can 'Hello' be used in formal and informal settings? Explain your answer.

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What are some alternative greetings to 'Hello' and when might you use them?

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