尊敬的老师好,我想问的是这句话转换成陈述句应该是怎样的,这用法是 be of 加名词当作形容词的用法吗?
上下文:As his studies come to a close the historian faces the challenge: Of what use have your studies been? Have you found in your work only the amusement of recounting the rise and fall of nations and ideas, and retelling “sad stories of the death of kings”?