单项选择题The word girl originally meant young people; and now it refers to young lady. This is an example of _____.
单项选择题Who was recognized throughout his life as the leader of transcendentalism movement
单项选择题The Australian national day is set on January 26 to commemorate _____.
单项选择题Which of the following words contains one bound morpheme
单项选择题The Anglo-Saxons began to settle in Britain in _____ century.