6. As Hurricane Hugo approached the Atlantic coast， it increased dramatically in strength， becoming the tenth most intense hurricane to hit the United States mainland in the twentieth century and most intense since Camille in 1969.

　　（A） most intense since Camille in 1969

　　（B） most intense after Camille in 1969

　　（C） the most intense since Camille in 1969

　　（D） the most intense after 1969， which had Camille

　　（E） since 1969 and Camille， the most intense

　　7. The commission has directed advertisers to restrict the use of the word “natural” to foods that do not contain color or flavor additives， chemical preservatives， or nothing that has been synthesized.

　　（A） or nothing that has been

　　（B） or that has been

　　（C） and nothing that is

　　（D） or anything that has been

　　（E） and anything

　　8. Doctors generally agree that such factors as cigarette smoking， eating rich foods high in fats， and alcohol consumption not only do damage by themselves but also aggravate genetic predispositions toward certain diseases.

　　（A） not only do damage by themselves but also aggravate

　　（B） do damage by themselves but also are aggravating to

　　（C） are damaging by themselves but also are aggravating

　　（D） not only do damage by themselves， they are also aggravating to

　　（E） are doing damage by themselves， and they are also aggravating

　　9. In a plan to stop the erosion of East Coast beaches， the Army Corps of Engineers proposed building parallel to shore a breakwater of rocks that would rise six feet above the waterline and act as a buffer， so that it absorbs the energy of crashing waves and protecting the beaches.

　　（A） act as a buffer， so that it absorbs

　　（B） act like a buffer so as to absorb

　　（C） act as a buffer， absorbing

　　（D） acting as a buffer， absorbing

　　（E） acting like a buffer， absorb

　　10. Senior executives had a larger percentage increase in pay in 1990 than the wages of other salaried workers.

　　（A） Senior executives had a larger percentage increase in pay in 1990 than

　　（B） The percentage of senior executives' pay increase in 1990 was larger than for

　　（C） The 1990 increase in pay for senior executives was larger in terms of percentage than

　　（D） In 1990 senior executives had a larger pay increase in terms of percentage than did

　　（E） The pay of senior executives increased in 1990 by a larger percentage than did