题目内容：

Several years ago, I had a long delay at the Pittsburg airport, ________ I headed for the shoe shine stand where two young ________ worked. One was a pleasant young man, the other was ________. I wanted the ________ one to shine my shoes. However, when my ________ came I got the quiet one.

I said, “Good morning! How are you?” The man said ________ and I thought to myself, “That’s no ________ to build a business!” As I sat down he ________ rolled up my pant leg and as he used the soap to ________ my shoes he was careful to get none on my ________. He wiped the shoes with extreme care and as he ________ the polish (shoe cream) he made certain that every inch of leather was totally ________. He brushed the shoes ________, then took his shine cloth and really put some energy into the ________. As he was shining my shoes, I looked carefully at the man ________. He obviously suffered from some degree of mental dullness. When he ________ the job successfully, I don’t need to tell you that the man got a ________ tip from me.

Two major observations: his parents must be great people to have ________ this young man the ________ of hard work; the second: regardless of your ability, if you ________ it and use it to the fullest, you can become really good at what you do. Major point: Be careful how you judge people on the first impression. Give them a chance.

1.A. or    B. so    C. for    D. but

2.A. guys    B. ladies    C. waiters    D. assistants

3.A. old    B. poor    C. silent    D. strange

4.A. generous    B. cautions    C. handsome    D. friendly

5.A. bill    B. turn    C. shoe    D. chance

6.A. everything    B. something    C. anything    D. nothing

7.A. way    B. excuse    C. doubt    D. reason

8.A. gladly    B. casually    C. carefully    D. purposely

9.A. repair    B. brush    C. shine    D. clean

10.A. pants    B. socks    C. hands    D. stockings

11.A. saw    B. pressed    C. applied    D. opened

12.A. collected    B. changed    C. checked    D. covered

13.A. magically    B. personally    C. beautifully    D. anxiously

14.A. job    B. show    C. game    D. life

15.A. at any time    B. for the first time    C. at random    D. at ease

16.A. completed    B. competed    C. found    D. quitted

17.A. pretty    B. handsome    C. smart    D. beautiful

18.A. taught    B. given    C. promised    D. prepared

19.A. result    B. evidence    C. significance    D. challenge

20.A. judge    B. admire    C. make    D. develop