根据以下资料，回答下列各题： Directions: There are 20 blanks in the following passage. For e

ach blank there are four choices marked A．B．C．and D．on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre. It has always been difficult for me to decide whether "popular music" means music written for the people or is simply music that the people like. The same problem of definition 67 with jazz. So many different 68 of "music have been called jazz at one time or another that it is 69 to say what it really is. Jazz has always been 70 to be black music but when I first 71 an interest in it, I used to hear white bands playing music that was like Louis Armstrongs in the 1920s. I found out 72 that they learnt to do this by playing his records 73 until their style. was close enough to his for them to 74 him. Since then white singers 75 Bob Dylan have rediscovered their own folk 76 , instead of borrowing from black roots. But the main changes 77 1960 have been social and technical. One is that young people have more money to spend on 78 at an earlier age than they 79 , so Tin Pan Alley, the "pop" music industry, 80 at teenage audience. 81 is that electronic equipment has developed to such an 82 that technicians are now capable of mixing sound to produce recordings that are quite different from a 83 performance. But the real problem with "pop" music is that Tin Pan Alley has always worked against its being a 84 music of the people. It 85 everything original and natural out of it and 86 it with cheap commercial imitations. As the American folk singer, Woody Guthrie, said: "Theyve always preferred the second rate songs. Theyve never wanted to play the good ones. " A．takes

A.exists

B.starts

C.correlates