完形填空。阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项。
Follow Every Rainbow
Shirley Allen loved to sing and play the piano. She studied music in college and her _1 was to become a concert pianist or blues singer. Everything __2___ when she was 20 years old. She became sick with what doctors __3___ was typhoid fever(伤寒)and she almost died. Doctors gave her medicine to help her get well, but the medicine __4 ___her to become ___5___ deaf. She could no longer hear the music which she had always___6___.
