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Read the text. Use the appropriate forms of the words on the right to complete it.
Sometimes jazz concerts are broadcast on the radio and on television. We(1) ... sure that you (2)... about this type of music. It (3)... in the United States when the (4)... Africans (5)... to North America. In those years many native songs (6)... by (7)... and the music of (8)... homeland (9)... on the new continent.
Modern (10)... write that jazz (11)... up of the music of West Africa.

be, hear
appear
one, bring
sing, they
they, play
science, make

Sometimes jazz concerts are broadcast on the radio and on television. We(1) are sure that you (2) 've heard about this type of music. It (3) appeared in the United States when the (4) first Africans (5) were brought to North America. In those years many native songs (6) were sung by (7) them and the music of (8) their homeland (9) was played on the new continent. Modern (10) scientists write that jazz (11) is made up of the music of West Africa.