第二节完形填空（共20小题；每小题1分，满分20分）
阅读下面的短文，从短文所给的A、B、C和D四个选项中，选出可以填入空白处的最佳答案。
It was in my high school science class. I was doing a task in front of the classroom with my favorite shirt on.
A ___21___ came, “Nice shirt,” I smiled from ear to ear. Then another voice said, “That shirt belonged to my dad. Greg’s mother works for my family. We were going to ___22___ that shirt away, but gave it to her ___23___.” I was speechless. I wanted to hide.
I ___24___ the shirt in the back of the closet and told my mum what had happened. She then dialed her ___25___, “I will no longer work for your family,” she told him. That night, Mom told my dad that she couldn’t clean anymore; she knew her life’s ___26___ was something greater.
The next morning she ___27___ with the personnel manager at the Board of Education. He told her that without a proper education she could not teach. So Mom decided to ___28___ a university.
After the first year in college, she went back to the personnel manager. He said, “You are ___29___, aren’t you? I think I have a ___30___ for you as a teacher’s assistant. This opportunity deals with children who are mentally challenged with little or no chance of___31___.” Mom accepted the opportunity very ___32___.
For almost five years, as a teacher’s assistant, she saw teacher after teacher give up on the children and quit, feeling ___33___. Then one day, the personnel manager and the principal ___34___ in her classroom. The principal said, “We have watched how you ___35___ the children and how they communicate with you and admire your hard-working ___36___ over the last five years. We are all in agreement that you ___37___ be the teacher of this class.”
My mom spent more than 20 years there. ___38___ her career, she was voted Teacher of the Year. All of this came about because of the ___39___ comment made in the classroom that day when I was in my high school. Mom showed me how to handle ___40___ situations and never give up.
21. A. noise    B. voice  C. sound  D. tune
22. A. get       B. take    C. carry   D. throw
23. A. otherwise     B. anyhow      C. instead       D. actually
24. A. settled  B. pushed       C. picked D. put
25. A. teacher B. employer    C. director      D. adviser
26. A. purpose       B. encouragement     C. process       D. victory
27. A. went     B. met     C. worked      D. stayed
28. A. visit     B. continue     C. attend D. prepare
29. A. serious  B. fortunate    C. careful       D. responsible
30. A. career   B. duty    C. position      D. part
31. A. learning       B. judging     C. obeying      D. imagining
32. A. patiently      B. eagerly       C. successfully       D. skillfully
33. A. upset    B. frightened  C. guilty  D. ashamed
34. A. looked up    B went up       C. took up      D. showed up
35. A. believe B. protect       C. treat    D. receive
36. A. spirit    B. intention    C. idea    D. attempt
37. A. must     B. would C. might  D. should
38. A. At B. During       C. On      D. With
39. A. worthless     B. thoughtless C. hopeless     D. helpless
40. A. challenging  B. different     C. dangerous   D. strange