题目内容：

As the teacher pronounced my name, I knew what lay ahead. She called me to the whiteboard to  ______ a long division（除法）problem. Math was my ______ subject. When doing a long division problem, I always repeatedly put the numbers in the ______ places, ______ forgot to add in the zeros.

As I _______the whiteboard, I looked at the blonde-haired girl next to me, trying to ______ what she was writing. ______I tried my best, she went faster than I could understand.

Impossible to understand. Why me? Why couldn’t I wrap my mind around this strange concept that all the other kids understood? Why, even when I _______ my hardest to deal with the division problems?

Why? Why?

I ________ salty tears and wrote some numbers randomly（随便地）on the board. The teacher read over our answers silently.

“Now, class, Susie did this problem absolutely correctly.”

“As for Tara,” the teacher said, ________ her eyes, “Gosh, I don't _____ know what she did.”

The class burst into _______, and I felt my face ________ red as I tried to sink as low as possible into my seat, in hopes of ________ them from seeing me at all.

But this ________ from middle school is one I remember, surprisingly, in a ________ way. This experience made me feel unimportant.________it made me stronger, and gave me ________. When I get a ________ grade in school, or am put down by somebody, I think of that moment and every single one of those whys that I asked myself, which gives me the willingness to ________ all of those whys and continue until perfection, or as close as I can get.

1.A. perform    B. find    C. dash    D. examine

2.A. favorite    B. respectful    C. worst    D. entertaining

3.A. wrong    B. proper    C. direct    D. important

4.A. nor    B. therefore    C. or    D. besides

5.A. moved    B. approached    C. used    D. returned

6.A. guess    B. imagine    C. think    D. copy

7.A. If    B. Unless    C. Though    D. Because

8.A. suggested    B. asked    C. admitted    D. tried

9.A. gave back    B. went back    C. held back    D. cut back

10.A. rolling    B. skimming    C. representing    D. inspiring

11.A. even    B. never    C. hardly    D. suddenly

12.A. anger    B. laughter    C. cheering    D. enjoyment

13.A. grew    B. made    C. changed    D. turned

14.A. letting    B. remembering    C. preventing    D. asking

15.A. tip    B. problem    C. promise    D. memory

16.A. positive    B. uncertain    C. false    D. disturbing

17.A. Or    B. And    C. So    D. Yet

18.A. determination    B. explanation    C. occupation    D. production

19.A. big    B. bad    C. high    D. good

20.A. get    B. answer    C. look    D. find