题目内容：

完形填空

阅读下面短文，掌握其大意，然后从所给的四个选项（A、B、C和D）中，选出最佳选项。

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 ________ On their faces was confidence（自信）. This was their last exam—then on to  ________   and jobs.

Some talked of jobs they already had; others talked of jobs they   ________ get. With the certainty of four years of college, they felt ready and able to take    ________  of the world.

The coming exam, they knew, would be a(n)  ________ task. The professor had said they could bring    ________  books or notes they wanted, requesting only that they did not    ________  each other during the test.

________  , they entered the classroom. The professor passed out the papers. And smiles   ________on the students’ faces as they noted there were only five essay-type questions.

Three hours had passed ________ 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   ________  faces before him, and then asked, “How many completed all five questions?”  ________  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   ________  .” But the class remained silent.

The professor put down the papers. “That is exactly what I ________  ,” He said. “I just want to impress upon you that   ________  you have completed four years of engineering, there are still many things about the   ________  you don’t know. These questions you couldn’t answer are relatively________   in everyday practice.” Then smiling, he added, “You will all    ________   this course, but remember—even though you are now college graduates, your education has just    ________  .”

Over years they have    ________ the name of his professor, but not the lesson he taught.

1.A. seconds        B. hours            C. days          D. minutes

2.A. interview       B. graduation       C. discussion     D. education

3.A. must            B. had to          C. used to       D. would

4.A. hold            B. charge          C. control       D. place

5.A. interesting    B. necessary       C. easy           D. unusual

6.A. no             B. any              C. all           D. either

7.A. talk to        B. listen to       C. look at       D. refer to

8.A. Nervously      B. Joyfully         C. Quickly       D. Curiously

9.A. appeared       B. changed         C. froze         D. stopped

10.A. before       B. then            C. as             D. after

11.A. pleased       B. surprised        C. moved        D. worried

12.A. Not            B. Once             C. Only           D. Even

13.A. all            B. one             C. none          D. it

14.A. wondered       B. enjoyed         C. expected      D. hated

15.A. right now     B. as though        C.  now that      D. even though

16.A. exam           B. question        C. subject        D. college

17.A. valuable       B. difficult        C. common        D. strange

18.A. fail           B. pass            C. take           D. start

19.A. completed      B. begun            C. failed        D. succeeded

20.A. forgotten     B. understood       C. remembered    D. strengthened