单项选择题A．Doing a bit of acting and photography.B．Going to concerts frequently.C．Playing traditional jazz and folk music.D．Travelling in Europe by hitch-hiking.

单项选择题A．Art.B．French.C．German.D．Chemistry.

单项选择题Walt Whitman helped to promote the development of ______.

单项选择题In Britain the real power was in _____.

单项选择题In the United States, it is the_____that formulates foreign policy and prepares laws for the home front.