John, 国语站 题库 6.52K 大中小设置文字大小 问题详情： John, _______ university professor, is considered to be _______ success as ______ expert in the agriculture research. A. a; a; an B. an; / ; an C. the; /; an D. a; the; an【回答】A知识点：冠词题型：选择题 TAG标签：John #
