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第二节完形填空 (共20小题；每小题1.5分，满分30分)
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。
It was the last day of the final examination in a large eastern university. On the steps of one building, a group of engineering seniors gathered, discussing the exam due to begin in a few   16  . On their faces was confidence. This was their last exam — then on to    17    and jobs. Some talked of jobs they already had; others talked of jobs they   18  get. With the certainty of four years of college, they felt ready and able to take   19  of the world.
The coming exam, they knew, would be a(n)   20  task. The professor had said they could bring   21  book or note they wanted, requesting only that they did not  22  each other, during the test.
   23  they entered the classroom. The professor passed out the papers. And smiles   24  on the students’ faces as they noted there were only five questions.
Three hours had passed   25  the professor began to collect the papers. The students no longer looked confident. On their faces was a frightened expression. Papers in hand, no one spoke as the professor faced the class.
He looked at the   26  faces before him, and then asked, “How many completed all five questions?”   27  a hand was raised.
“How many answered four?” Still no hands.
“Three? Two?” The students moved restlessly in their seats.
“One, then? Certainly somebody finished   28  .”But the class remained silent.
The professor put down the papers. “That is exactly what I   29 ,” he said. “I just want to impress upon you that,   30  you have completed four years of engineering, there are still many things about the   31  you don’t know. These questions you couldn’t answer are relatively   32  in everyday practice. ” Then smiling, he added, “You will all   33  this course, but remember — even though you are now college graduates, your education has just   34  .”
The years have   35  the name of this professor, but not the lesson he taught.
16. A. seconds                     B. minutes                    C. hours                       D. days
17. A. interview            B. discussion                 C. education                 D. graduation
18. A. would                B. must                        C. have to                     D. used to
19. A. hold                   B. control                        C. charge                  D. place
20. A. interesting          B. necessary                  C. easy                         D. unusual
21. A. no                      B. either                       C. any                          D. all
22. A. listen to                 B. look at                        C. refer to                    D. talk to
23. A. Nervously           B. Joyfully                   C. Quickly                    D. Curiously
24. A. appeared             B. changed                   C. froze                       D. stopped
25. A. then                   B. as                            C. before                      D. after
26. A. pleased               B. worried                    C. surprised                  D. moved
27. A. Not                    B. Once                        C. Only                        D. Even
28. A. all                      B. none                        C. one                          D. it
29. A. wondered           B. enjoyed                    C. hated                       D. expected
30. A. right now           B. as though                 C. now that                   D. even though
31. A. exam                  B. subject                        C. question                   D. college
32. A. valuable             B. difficult                   C. common                   D. strange
33. A. pass                   B. fail                          C. take                         D. start
34. A. begun                 B. completed                C. failed                       D. succeeded
35. A. forgot                B. remembered             C. strengthened             D. weakened