题目内容

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
C
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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