单项选择题Walt Whitman helped to promote the development of ______.
单项选择题Henry James was regarded as one of the pioneers of ______, and had great influence on the age that followed.
单项选择题In Britain the real power was in ______.
单项选择题Lead (metal) and lead (dog's head) are spelt in the same way, but pronounced differently. This kind of sense relation is called ______
单项选择题The most striking phonetic difference between American and British English is the pronunciation of ______ in words.