阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。
After thirty years in the classroom, I have come to realize that teacher's behavior can make a world of difference for a child. This is one such 1.
While I was attending a party being 2 at a high school one evening, I looked around and noticed a young girl who looked 3. I thought she had been a(n) 4 of mine. I tried to remember her 5, but I couldn't. I felt so frustrated (沮丧的), 6 I have always been able to 7 former students.
Her eyes met mine and she threw her 8 around me and said, “Mrs. G, it's me, Sarah, and I'm still 9!” The memories 10. You see, Sarah was 11 a student in my classroom. Sarah's mother had abandoned (遗弃) her, and her father had 12 her. She was sent to live with her grandparents the year I 13 her. Sarah was angry, often in 14 and often in the office.
It was during one of those 15 visits that I first met her. She was writing. I introduced myself to her and asked her 16 she was writing. Sarah shared her story with me. I knew it was healing (康复) for her to put her 17 on paper. Every morning before school she would come into my classroom and we would work on her writing skills.
Our conversation that evening was filled with 18. She expected to go to college. Driving home, I could not help but 19 the impact (影响) for both good and bad that teachers have upon their students. Taking the time to 20 with a child has the power to change that child's life. That's why I teach.
