题目内容：

    Growing up, I thought math class was something to be endured, not enjoyed. But my ___wasn't with math itself. In fact, I spent countless hours as a child doing logic and math puzzles ______ .

By high school, none of my teachers ___ my mathematical talent, but none of them really encouraged it, either. What I wanted to do was play college football. My ambition was to get an athletic ______to attend a Big Ten school. The chances were quite ______ .

Thai didn't____me from dreaming, though. And it didn't stop my coaches from encouraging me to believe I could reach my goal, and ____ me to work for it. They made videotapes of my performances and sent them to college coaches. It didn't____that I didn't initially attract much interest from the big schools. My coaches kept ____ the phone, and kept convincing me to try to prove myself. ______ ,a Big Ten school, Penn State, did offer me a scholarship.

I wish math teachers were more like football coaches. Don't ____ me wrong： I don't blame my math teachers. They taught me well. When I got to Penn State, where I majored in mathematics, I was prepared to do the ______ at an advanced level.

A study shows that students are affected by more than _____ the quality of a lesson plan. They also respond to the passion of their teachers, and they seek a sense of ________. There are many ways to be an effective teacher, _____ there are many ways to be an effective coach. Until I got to college, I didn't really know what mathematics was. My professor kept giving me problems, and I kept pursuing them. Before long, he was _____ me to problems never solved before, and urging me to find new ______ to figure them out.

The mathematical research I was doing had little in common with what I did in my high school.

______, it was closer to the math and logic puzzles I did on my own as a boy. It gave me that same sense of wonder and curiosity, and it _______ creativity.

I am now a PhD in mathematics and have published several papers in mathematic journals. I wish I'd known this was ______ when I was a kid.

1.A.delight B.problem C.withdrawal D.goal

2.A.angrily B.altogether C.passively D.alone

3.A.appreciated B.admitted C.questioned D.evaluated

4.A.document B.scholarship C.criterion D.training

5.A.remote B.realistic C.strong D.necessary

6.A.defend B.excuse C.discourage D.save

7.A.following B.warning C.begging D.pushing

8.A.work B.count C.occur D.help

9.A.putting away B.hanging on C.picking up D.holding out

10.A.Obviously B.Finally C.Consequently D.Easily

11.A.get B.make C.prove D.leave

12.A.experiment B.practice C.survey D.subject

13.A.still B.even C.just D.yet

14.A.purpose B.belonging C.relief D.duty

15.A.since B.as C.while D.unless

16.A.applying B.putting C.devoting D.introducing

17.A.policies B.techniques C.agendas D.assessments

18.A.Thus B.Similarly C.Gradually D.Instead

19.A.rewarded B.deserved C.lacked D.acquired

20.A.imaginary B.unique C.possible D.popular