【题目】 Despite the previous rounds of talks, no agreement______ so far by the two sides.
A. has been reached B. was reached
C. will reach D. will have reached
在线课程【答案】A
【解析】
试题分析：句意：尽管之前多轮谈判，但到目前为止双方没有达成任何协议。根据句中的时间状语so far“到目前为止”可知用现在完成时。主语agreement与reach为被动关系，根据句意可知选A。