2.We buy tickets for the show. Entrance is free. a) don't have tob) doesn't have to c) mustn't3.Stacy is so lucky;she wear a school uniform. a) don't have tob) doesn't have to c) mustn't4.I work today. It's Sunday. a) don't have tob) doesn't have to c) mustn't5.Youlisten to music when you are cycling. You might have an accident.a) don't have tob) doesn't have to c) mustn't

Jazz is type of music and the only art form that was created in the United States.Jazz was created by black Americans.Many blacks were broght from Africa to America as slaves.Different native songs were sung by the black slaves and the music of their homeland was played in America. p of the music of West Africa,the work songs of the slaves and religious music.The first jazz bands were formed at the end of the 19th century.This means that jazz music is made up or created on the spot.his is why a jazz song can sound a little different each time it is played

By the 1920s,jazz was popular all over the United StatesToday jazz is played all over the world.On every continent special festivals are held where jazz muscians from the United States,Asia,Africa,South America and Europe meet and share their music.Let's hope that no matter what happens in music jazz will always be performed and listened to.