Choose the phrase or clause A, B, C or D that best completes each sentence. 11. Richard was asked to withdraw from graduate school because __________________________________. A. they believed he was not really able to complete research. B. he seemed to be incapable of completing his research. C. it was decided that he was not capable to complete research. D. his ability to finish the research was not believed or trusted. 12. Even in northern latitudes, ________________________________. A. to the skin the sun’s ultraviolet rays can cause considerable change B. the considerable damage caused by the sun to the skin C. the sun considerable damage to skin can cause D. the sun’s ultraviolet rays can cause considerable damage to the skin 13. This university’s program _______________________ those of Harvard. A. come second after B. are second only to C. are first except for D. are in second place from 14. It is very difficult to stop the cultivation of marijuana because ________________________. A. it grows very carelessly B. of it’s growth without attention C. it grows well with little care D. it doesn’t care much to grow 15. Automobile production in the United States _________________________. A. have taken slumps and rises in recent years B. has been rather erratic recently C. has been erratically lately D. are going up and down all the time