题目：
多选题
Concerning Walt Whitman, which are the correct statements?
- A. . He shows concern for the whole hardworking people and the burgeoning of cities.
- B. In his leaves of grass, openness, freedom, and individualism are all that concerned him.
- C. Leaves of Grass is an immediate success.
- D. He enjoyed great fame and popularity when he was still young.
答案：
<查看本题扣1积分>