CBE 3.06 | The invention of the telephone | Language focus: phrasal verbs with ‘up’
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The Story of the World's First Telephone
Alexander gream bale invented the world's first telephone. His assistant, watson, picked up the phone and bell said: 'I want to see you' Today five point one three billion people around the world own some kind of mobile device. The telephone has evolved into an essential part of everyday life.
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