emigrated ; great ; known ; words ; on
Alexander Graham Bell is wiely(1).......as the inventor of the first telephone. He was born on March 3rd,1847 in Edinburgh ,Scotland.When he was 23,Bell (2)...to Canada with his parents and the next year moved to the United States to teach deaf-mute children.He took(3)...interest in transmitting the human voice. With his colleague Thomas Watson,Bell worked very hard(4)...the experimentation to invent devices such as the harmonic telegraph(used to send multiple messages over a single wire) and phonautograph(used to draw the shape of the waves). The firsttelephone communication was said to have happened between Bell and Watson in 1876 while Bell was at one end of the line , and Watson worked on the telephone in another room.The first transmitted(5)...were,'Mr.Watson, come here.I want to see you'.
1.known
2.emigrated
3.great
4.on
5.words
