exclusively from reserves in North America.

　　（A） After crude oil， natural gas is the United States second biggest fuel source and supplied almost

　　exclusively from reserves in North America.

　　（B） Natural gas， after crude oil the United States second biggest fuel source， supplied almost exclusively from reserves in North America.

　　（C） Being supplied almost exclusively from reserves in North America， natural gas， the United States second biggest fuel source after crude oil.

　　（D） Natural gas， the United States' second biggest fuel source after crude oil， is supplied almost exclusively from reserves in North America.

　　（E） Natural gas is supplied almost exclusively from reserves in North America， being the United

　　States' second biggest fuel source after crude oil.

　　10. The airline industry is cutting its lowest discount fares more widely， more substantially， and earlier

　　this year than it normally does at the end of the summer， a time during which travel usually

　　decreases and the industry uses some lower fares for the attraction of passengers.

　　（A） during which travel usually decreases and the industry uses some lower fares for the attraction of

　　（B） during which travel usually decreases and therefore the industry will use some lower fares for the attraction of

　　（C） in which travel usually decreases and in which the industry therefore uses some lower fares

　　attracting

　　（D） when travel usually decreases and the industry uses some lower fares to attract

　　（E） when travel usually decreases and therefore the industry will use lower fares for the attraction of

　　11. The aristocratic values expressed in the writings of Marguerite Yourcenar place her within the

　　French classical tradition， as does her passionate interest in history， particularly Roman history.

　　（A） as does

　　（B） so do

　　（C） as do

　　（D） so is the case with

　　（E） similarly， does

　　12. Selling several hundred thousand copies in six months， the publication of “Maple Leaf Rag” in

　　1899 was an instant hit， helping to establish Scott Joplin as the preeminent ragtime composer.

　　（A） Selling several hundred thousand copies in six months， the publication of “Maple Leaf Rag”

　　in 1899 was an instant hit， helping to establish Scott Joplin as the preeminent ragtime composer.

　　（B） The publication in 1899 of “Maple Leaf Rag” was an instant hit： in six months they sold several hundred thousand copies and it helped establish Scott Joplin as the preeminent ragtime composer.

　　（C） Helping to establish Scott Joplin as the preeminent ragtime composer was the publication of

　　“Maple Leaf Rag” in 1899， which was an instant hit： it sold several hundred thousand copies in six months.

　　（D） “Maple Leaf Rag” was an instant hit： it helped establish Scott Joplin as the preeminent ragtime

　　composer， published in 1899 and selling several hundred thousand copies in six months.

　　（E） Published in 1899， “Maple Leaf Rag” was an instant hit， selling several hundred thousand copies in six months： it helped establish Scott Joplin as the preeminent ragtime composer.