单项选择题White people account for about ______ of the total population of America.
单项选择题The term The Lost Generation mainly refers to the American generation of young people after
单项选择题The Tories we-re the forerunners of ______.
单项选择题All of the following words except ______ belong to the closed class.
单项选择题Henry David Thoreau was the author of the world-famous