（A） The development of a new jumbo rocket that is expected to carry the United States into its next phase of space exploration will be able to deliver a heavier load of instruments into orbit than the space shuttle and at a lower cost.
（B） The development of a new jumbo rocket is expected to carry the United States into its next phase of space exploration and be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle.
（C） The new development of a jumbo rocket， which is expected to carry the United States into its next phase of space exploration， will be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle.
（D） A newly developed jumbo rocket， which is expected to carry the United States into its next phase of space exploration， will be able to deliver a heavier load of instruments into orbit than the space shuttle can， and at a lower cost.
（E） A newly developed jumbo rocket， which is expected to carry the United States into its next phase of space exploration， will be able to deliver a heavier load of instruments into orbit than the space shuttle and to cost less.
16. Once they had seen the report from the medical examiner， the investigators did not doubt whether the body recovered from the river was the man who had attempted to escape from the state prison.
（A） did not doubt whether the body recovered from the river was
（B） have no doubt whether the body recovered from the river was
（C） had not doubted that the body recovered from the river was
（D） have no doubt whether the body recovered from the river was that of
（E） had no doubt that the body recovered from the river was that of
17. Contestants in many sports prepare for competition by eating pasta as part of a “carbohydrate-loading ” regimen that is supposed to provide quick energy.
（A） prepare for competition by eating pasta as
（B） prepare for competition and eat pasta， which is
（C） prepare for competition by eating pasta because this is
（D） eat pasta to prepare for competing， which is
（E） eat pasta to prepare for competing as
18. His studies of ice-polished rocks in his Alpine home-land， far outside the range of present-day glaciers， led Louis Agassiz in 1837 to propose the concept of an age in which great ice sheets had existed in now currently temperate areas.
（A） in which great ice sheets had existed in now currently temperate areas
（B） in which great ice sheets existed in what are now temperate areas
（C） when great ice sheets existed where there were areas now temperate
（D） when great ice sheets had existed in current temperate areas
（E） when great ice sheets existed in areas now that are temperate
19. More and more in recent years， cities are stressing the arts as a means to greater economic development and investing millions of dollars in cultural activities， despite strained municipal budgets and fading federal support.
（A） to greater economic development and investing
（B） to greater development economically and investing
（C） of greater economic development and invest
（D） of greater development economically and invest
（E） for greater economic development and the investment of
20. Since 1986 enrollments of African Americans， American Indians， and Hispanic Americans in full-time engineering programs in the United States has steadily increased， while the number of other students who enter the field has fallen.
（A） has steadily increased， while the number of other students who enter the field has fallen
（B） has steadily increased， while other students entering the field have declined in number
（C） increased steadily， while there was a decline in the number of other students entering the field
（D） have steadily increased， while the number of other students entering the field has fallen
（E） have steadily increased， while that of other students who enter the field fell
KEYS
1. D 2. E 3. B 4. A 5. B
6. C 7. D 8. A 9. C 10. E
11. D 12. B 13. C 14. E 15. D
16. E 17. A 18. B 19. A 20. D
