George gershwin ( up in new york city, and he first made his living playing popular music on the piano in “tin pan alley”. (to grew) it was there that he ( a strong feel for the popular music of the time that served as a basis for the popular songs that he composed. (to develop) in addition to his love of popular songs, he ( jazz (to enjoy). he believed that jazz ( the primary source of truly american folk music. (to be) gershwin ( that jazz could serve as the basis for serious symphonic works. (to believe)
1) grew
2) developed
3) enjoyed
4) was
5) believed