On July 20, 1969, Neil Armstrong bee the first man foot on the moon .
A. setting
B. set
C. to setting
D. to set
网友回答
A. setting
B. set
C. to setting
(答案→)D. to set
解析：考查不定式做定语。当名词是序数词或者有序数词修饰的时候，用不定式做定语对其进行修饰。The first man to set foot on the moon指第一个登上月球的人。