Developing 国语站 题库 2.17W 大中小设置文字大小 问题详情：Developing ________ deep and lifelong friendship with someone is not an easy job because it takes time and ________ effort. A. the; an B. a; an C. the; 不填 D. a; 不填【回答】D知识点：冠词题型：选择题 TAG标签：developing #
