单项选择题William Faulkner was the foremost American______writer of the 20th century.
单项选择题The novel______by Samuel Richardson is considered the first English psycho-analytical novel.
单项选择题John Dryden was an English______.
单项选择题Black people were first brought to America from Africa as______.
单项选择题______are bound morphemes because they cannot be used as separate words.