问题 选择题

The city of Qingdao has been working on building itself up as a city of sails ________ it successfully hosted the 2008 Olympics’ sailing program.

A.after

B.since

C.when

D.until

答案

答案:B

题目分析:考查连词。题意:自成功举办08奥运游泳项目以来,青岛一直致力于建设航海城。现在完成进行时has been working提示用since引导状语从句。故B项正确。

单项选择题
单项选择题