Music comes in many forms; most countries have a style. of their own. （1)_____ the mm of t

Music comes in many forms; most countries have a style. of their own. (1)_____ the mm of the century when jazz was born, America had no prominent (2)_____ of its own. No one knows exactly when jazz was (3)_____, or by whom. But it began to be (4)_____ in the early 1890s. Jazz is America's contribution to (5)_____ music. In contrast to classical music, which (6)_____ formal European traditions, jazz is spontaneous and free-form. It bubbles with energy, (7)_____ the moods, interests, and emotions of the people: In the 1920s jazz (8)_____ like America. And (9)_____ it does today. The (10)_____ of this music are as interesting as the music (11)_____. American Negroes, or blacks, as they are called today, were the jazz (12)_____.They were brought to the Southern states (13)_____ slaves. They were sold to plantation owners and forced to work long (14)_____ When a Negro died his friends and relatives (15)_____ a procession to carry the body to the cemetery. In New Orleans, a band, often accompanied the (16)_____ On the way to the cemetery the band played slow, solemn music suited to the occasion. (17)_____ on the way home the mood changed. Spirits lifted. Death had removed one of their (18)_____, but the living were glad to be alive. The band played (19)_____ music, improvising on both the harmony and the melody of the tunes (20)_____ at the funeral. This music made everyone want to dance. It was an early form. of jazz.

A．At

B．In

C．By

D．On