11. The millions of calculations involved, had they been done by hand, _____ all practical value by the time they were finished.　

A. could lose　　　　　　　 B. would have lost　　　　　　 C. might lose　　　　　　　　　　 D. ought to have lost

10. _____ what he can do. He might get a job tomorrow.　 He might stay out of work for weeks.

A. We didn’t know　　　　　　　　　　　　　　　　　　　　　 B. He doesn’t know

C. There is no knowing　　　　　　　　　　　　　　　　　　 D. It was known that

9. Students shouldn’t be given so difficult a problem ___ they cannot work out.

A. that　　　　　　　　　　　 B. which　　　　　　　　　　　　　 C. while　　　　　　　　　　　　　 D.As

8.Everyone likes　 　of the two stories, for this story is 　　than that one.

A. both; not more interesting　　　　　　　　　　　　　　　 B. neither; no more interesting

C. neither; not more interesting　　 　　　　　　　　　 D. either; no more interesting

7. --Miss Lingam is arm in arm with Mr. Peabody!　 --______sight!　

A. how astonishing a　　　　　　　　　　　　　　　　　　　　 B. so an astonishing

C. what astonishing a　 D. such an astonishing

6. Mr. Oven has three children, one of whom is a child of six, ___ twins of twelve.

A. another　　　　　　　　 B. other　　　　　　　　　　　　　 C. the others　　　　　　　　　　 D. others

5. 　　the fact that his first experiments had failed, Prof. Smith persisted in his research.

A. Although　　　　　　　 B. Regardless　　　　　　　　　 C. In spite of　　　　　　　　　　 D. In views of

4. So involved with computer games　　 that teachers at summer computer camps often have to force them to break for sports and music.　

A. became the children　　　　　　　　　　　　　　　　　　　 B. become the children

C. had the children become　　　　　　　　　　　　　　　　 D. do the children become

3.Living alone in the central desert in Australia has its problems, 　　　obtaining water is not the least.

A. of which　　　　　　　 B. for what　　　　　　　　　　　 C. as　　　　　　　　　　　　　　　 D. whose

2.Tom appreciated　　 the good chance to study in Oxford since he graduated from No. 4 High School in Shenyang.

A. having been given 　　　　　　　　　　　　　　　　　　　 B. having given

C. having been giving　　　 　　　　　　　　　　　　　　 D. to have given