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       Music comes in many forms; most countries have a style of their own. 1 the turn of the century when jazz was born,  America had no prominent 2 ofits own.No one knows exactly when jazz was 3 ,or by whom.  But it began to be 4 in the early 1900s.Jazz is   Americas contribution to 5 music.In contrast to classical music, which 6 formal European traditions, jazz is spontaneous and freeª²form.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 Southern States 13 slaves.They were sold to plantation owners and forced to work long 14 .When a Negro died his friend 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 bealive.The band played 19 music, improvising(¼´Ð˱íÑÝ) on both the harmony andthe melody of the tunes 20 at the funeral.This music made everyone want to dance.It was an early form of jazz.
1.  A.By  B.At  C.In  D.On
2.  A.music  B.song  C.melody  D.style
3.  A.discovered  B.acted  C.invented  D.designed
4.  A.noticed  B.found  C.listened  D.heard
5.  A.classical  B.sacred  C.popular  D.light
6.  A.forms  B.follows  C.approaches  D.introduces
7.  A.expressing  B.explaining  C.exposing  D.illustrating
8.  A.appeared  B.felt  C.seemed  D.sounded
9.  A.as  B.so  C.either  D.neither
10.  A.origins  B.originals  C.discoveries  D.resources
11.  A.concerned  B.itself  C.available  D.oneself
12.  A.players  B.followers  C.fans  D.pioneers
13.  A.for  B.as  C.with  D.by
14.  A.months  B.weeks  C.hours  D.times
15.  A.demonstrated  B.composed  C.hosted  D.formed
16.  A.demonstration  B.procession  C.body  D.march
17.  A.Even  B.Therefore  C.Furthermore  D.  But
18.  A.number  B.members  C.body  D.relations
19.  A.sad  B.solemn  C.happy  D.funeral
20.  A.whistled  B.sung  C.presented  D.showed