阅读下列短文，根据短文内容填空，在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

    On the first day of my first grade, I stood by the door with butterflies in my stomach. I (voice) my biggest concern to my mother. "How will I make friends?" She handed me advice. "Be yourself." For the past 20 years. I have lived by these words. Soon I will graduate and become part of the real world. Nervously (face) challenges. I know I will whisper to (I) the two simple words "Be yourself".