单项选择题Which of the following cities is called the cradle of American liberty
单项选择题In America, high school graduates have to take ______ in order to enter prestigious universities.
单项选择题Numerous British political leaders take pride in their being graduates of ______.
单项选择题The author of Sister Carrie is ______.
单项选择题English Elizabethan age was most celebrated for its achievements in ______.