In the nineteenth century, the invention of the telegraph made it possible to send noises, signals, and even music over wires from one place to another. However, the human voice __1__ this way. Many inventors tried to find a __2__ to send a voice over wires, and in 1876 some of their efforts were crowned with success. ___3___ American inventors, Alexander Graham Bell and Elisha Gray, __4__ at almost the same time. The United States Supreme Court finally had to decide which of the two __5__ the first inventor of the telephone. The Court decided __6__ Bells favor.
Born in Edinbrug, Scotland, Bell grew up in a family __7__ was very interested in teaching people to speak. His grandfather had been an actor who left __8__ to teach elocution; his father was a teacher __9__ deaf-mutes learn how to speak.
However, probably none of the __10__ inventions gave Bell the same feeling of triumph __11__ he had on the day when he spilled some acid from his batteries. It was after he had worked for months to find ways to send something more __12__metallic twangs over the wires. Thinking Watson, __13__, was in the next room, Bell called, Mr.Watson, __14__. I want you. Watson was not in the next room. He was down in his laboratory, __15__ to the receiver. To Watsons surprise, he heard the words perfectly. He ran to tell Bell the news: the wires had carried Bells voice perfectly.
EXERCISE:
1. A) had never traveled B) never had traveled
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