题目

The top officer in Beijing says that all construction work for the Beijing Olympic                by 2006. A.has been completed B.has been completed C.will have been completed D.will have completed 答案:C 解析: 句子主语all construction work和 complete构成动宾关系,所以要用被动语态;再者,“by+将来时间”作状语时,句子要用将来完成时态。
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