单选题 The country was on the verge of becoming prosperous and successful. The underlined part means
A. on the border of B. close to
C. on the margin of D. during the course of

【正确答案】 B

【答案解析】[解析] 固定搭配题。on the verge of表示“在某事即将发生之际；接近出现某事物之点”。on the border of表示“在……的边界”；close to表示“接近”，be close to doing sth. 表示“快要做某事”；on the margin of表示“在……的边缘”；during the course of表示“在……的过程中”。根据句意选B：close to。