TO SATISFY GRANT'S REQUEST FOR THE PIONEER, THE MICHIGAN CENTRAL RAILROAD MADEIMPROVEMENTS ON ITS LINE TO ACCOMMODATE THE WIDE CAR, AND SOON OTHER RAILROADS FOLLOWED

4. To satisfy Grant's request for the Pioneer, the Michigan Central Railroad made

improvements on its line to accommodate the wide car, and soon other railroads followed.

George Pullman founded the Pullman Palace Car Company in partnership with financier

Andrew Carnegie and eventually became a millionaire. 41.The main idea of the passage is

that ____________.

A. America's railroads used to provide much of the country's transportation

B. President Lincoln's assassination in 1865 shocked the nation

C. George Pullman was the only one to come up with the idea for a sleeping car

D. Pullman's idea for a sleeping car became workable after Lincoln's death 42.The pronoun

"it" in paragraph 2 refers to ____________.

A. the Pioneer B. the site the present-day Chicago Union Station

B. two years D. a railroad siding