Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
The invention of the phonograph happened quite by accident. Thomas Edison moved to Menlo Park, New Jersy in 1876, where he established an industrial research laboratory. There, Edison was working on a carbon telephone transmitter to improve the existing Bell telephone system.
In that laboratory a year later, Edison invented the phonograph while he was trying to improve a telegraph repeater. He attached a telephone diaphragm to the needle in the telegraph repeater; in this way, he was able to reproduce a recording that could be played back. After he made some improvements to the machine, he tested it. He recited “Mary Had a Little Lamb” into the machine and played his voice back to a very surprised audience.
29. What is the best title for the passage?
A. Thomas Edison’s invention.
B. Improvements in telephone and telegraph
C. The History of Menlo Park
D. An accidental invention
30. In what year did the invention of phonograph occur?
A. 1876 B. 1877
C. 1878 D. the article does not say
31. What was Edison working on when he created the phonograph?
A. A telegraph repeater B. A telegraph diaphragm
C. A telephone repeater D. A telephone diaphragm
32. According to the passage, how did Edison test his new invention?
A. He made improvements to the machine. B. He used a carbon transmitter.
C. He read a children’s rhyme. D. He produced the audience voice
