阅读下面短文，从短文后各题所给A、B、C、和D中，选出可以填入空白处的最佳选项。I was shocked when my socially awkward sister, who had suffered from Asperger Syndrome (阿斯伯格综合症), decided to sing in front of the school. I knew she would 1 me in some way, so I protested. However, my parents insisted that she 2 and I would have to be part of the audience. I silently hoped that something would happen to 3 me from watching her losing face.
As I waited in the hall, sweat 4 my forehead. I comforted myself that no one knew she was my sister and tried to persuade myself that it would be 5 . The lights darkened and the 6 opened to reveal (使露面) my sister standing alone on stage. She seemed 7 , taking a minute to stammer (结结巴巴地说) her name and class. 8 began to be heard in the audience.
I shifted nervously in my seat, afraid what was about to happen. But as my sister started to sing, I was 9 . Her voice flowed effortlessly and melodiously, filling the hall with its 10 . I watched in wonder, realizing I had never known she could sing so 11 . I listened carefully to the lyric (歌词) she had written herself, feeling ashamed for doubting her 12 . My heart gave way as I heard the heartfelt words.
In that moment, guilt and shame flooded my heart. 13 my unwillingness to support her, she had never taken anything that I had done to her to heart. It was then that I determined to love her 14 . It was as if a veil (面纱) had been 15 from my eyes, and my heart was full.
