8. Cliper ships were the swiftest sailing ships that........to sea and the most beautiful.

15. The basic fiber-optics system is called a fiberscope,.......consists of two bundles of fibers.

5. Richard nixon had been a lawyer and...........before he entered politics.

9. The ships had their days of........in the 1840s and 1850s.

1. The mausoleum is.........by thien thu mountain, two towering columns and a vast expanse of water.

17. .......his highly individual conceptions of music and chaos, john cage became a leading figure in avant-garde music.

20. ........billions and billions of stars exist in the vast apace beyond our milky way galaxy.

6. Sedimentary rocks are formed below the surface of the earth......very high temperatures and pressures.

16. Physicians can look into the lungs, heart and other areas that were formerly.........to them.

19. Experiments in the sinic imaging of moving objects...........in both the united states and europe well before the second world war.

10. Tea loses its flavor quickly..........in the hold of a vessel.

13. In 1778, he.........to london to study with benjamin west for four year.

21. ........gene-bearing bodies within the nuclei of living organisms.

14. No one has been able to satisfactorily explain how or.........the moon sporadically spark.

4. Professional people expect........when it is necessary to cancel an appointment.

2. Put plants.......a window so that they will get enough light.

18. Sanford meisner.......the neighborthood playhouse in new york city.

7. Famers look forward to........every summer.

11. Earl was one of the fist american artists............landscapes.

12. The crime rate has continued to rise in american cities despite efforts on the part of both govermment and private citizens to curb........

3. Employers offten require that candidates have not only a degree..........