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
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。