The first prize winner , John was so disappointed that he felt unwilling to know the rest of the results.
A. announcing
B. announced
C. having announced
D. had been announced
网友回答
A. announcing
B. announced
C. having announced
D. had been announced
解析：考察的独立主格结构。独立主格结构不是句子，但是它的作用相当于一个句子。本题的The first prize winner announced正是一个独立主格结构=After The first prize winner was announced.结合句意可知B正确。句意：第一名被宣布以后，John如此的失望以至于他都不愿意去听其他的结果。