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Unit 3 The world online Wele to the unit Do you know how people keep in touch with each other? Brainstorming What are they? postcards What are they? letters What are they? Telephones and mobile phones What are they? Telegraphs faxes What are they? puters Discussion Which one do you prefer to use to keep in touch with your friends? Why? postcard telephone puter letter Discussion Do you like to use the Inter? What do y