问题
单项选择题
World War Ⅱ is commonly acknowledged ______ some of the 20th century's most notable poetry.
A．and produced
B．to produce
C．to have produced
D．had produced
答案
参考答案：C
解析：[分析] 习惯用法和结构识别 be acknowledged to/as表示：被认作……；如：The mill produces what is widely acknowledged to be the finest wool in the world．这个工厂生产(被普遍认为是)世界上最好的羊毛。本句意为：二战被公认为是创作出二十世纪最著名诗歌的时代。因为诗歌已创作出，应用完成式，所以答案为C。