问题补充：
, Mark Twain became worldwide famous at once.
A. The novel was brought out
B. The novel brought out
C. The novel was coming out
D. The novel came out
答案：
A. The novel was brought out
(答案→)B. The novel brought out
C. The novel was coming out
D. The novel came out
解析：考查独立主格结构。因为逗号前后没有连词来连接这部分，决定了前面不可能是一个句子。排除了ACD。The novel brought out=After the novel was brought out.句意：那本小说出版以后，Mark Twain立刻变得举世闻名。
