The U. S. Constitution requires that the president should be a _______ year-old native born American citizen, living in the States for 14 years.

单项选择题In the word unpredictable , pre- is a ______.

单项选择题______ approach the same linguistic unit from different perspectives.

单项选择题Since 1971 the Canadian government has adopted policy of ______, recognizing that cultural pluralism with- in a bilingual framework is the essence of the Canadian identity.

单项选择题Chinese poetry and philosophy have exerted great influence over ______.

单项选择题In English Civil War, also called the Puritan Revolution, a famous general _____ defeated the king at Naseby in 1645.