题目内容：
根据以下材料，回答题I'll Be Bach
Composer David Cope is the inventor of a computer program that writes original works of classical music. It took Cope 30 years to develop the software. Now most people can't __________(51) the difference between music by the famous German composer J. S.Bach (1685-1750) and the Bach-like compositions from Cope's computer.
It all started in 1980 in the United States, when Cope was trying to write an opera. He was having__________ (52) thinking of new melodies, so he wrote a computer program to create the melodies. At first this music was not __________(53) to listen to. What did Cope do?He began to rethink how human beings compose music. He realized that composers' brains __________(54) like big databases.
First, they take in all the music that they have ever heard.Then they take __________(55) the music that they dislike. Finally, they make new music from what is__________ (56). According to Cope, only the great composers are able to create the database accurately, rememberit, and form new musical pattems from it.
Cope built a __________ (57) database of existing music. He began with hundreds of works by Bach. The software analyzed the data __________ (58) it down into smaller pieces and looked for patterns. It then combined the __________ (59) into new patterns. Beforelong, the program could compose short Bach-like works. Theyweren't good, but it was a start.
Cope knew he had more work to do-he had a whole opera to write. He continued to improve the software. Soon it could__________(60) more complex music. He also added many other composers,including his own work to the database.
A few years later, Cope's computer program, called "Emmy", was ready to help him with his opera.
The__________(61) required a lot of collaboration between the composer and Emmy. Cope listened to the computer's musical ideas and used the __________(62) that he liked. WithEmmy, the opera took only two weeks to finish.It was called Cradle Falling, and it was a great__________(63)! Cope received some of the best reviews of his career, but no one knew exactly __________ (64) he had composed the work.
Since that first opera, Emmy has written thousands of compositions. Cope still gives Emmy feedback on what he likes and doesn't like of her music, __________(65) she is doing most of the hard work of composing these days!
回答(51)题 A．make
B．tell
C．take
D．understand
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