One of most wonderful inventions of the past 100 years is the telephone. It was invented in 1876 by alexander graham bell when he was working on a telegraph set. The telephone which is familiar, handy instrument, becomes highly important part of our daily life. The first telephone was invented in 1877. Today there are over 250,000,000 telephones in the world and it is estimated that nearly 1,000,000,000,00 (billion) conversations take place a day.
1. The text tells : the invention of the telephone
2. By 2012, rhe telephone usage will have been about : 135 years.
3. The telephone was invented in the : 19 th century.
4. ".... it is estimated that nearly 1,000,000,000,00 (billion) conversations take place a day. " the underlined wprd is similar to : guessed
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