The mayor of Beijing says that all construction work for the Beijing Olympics ____ in 2006 .A has

题目

The mayor of Beijing says that all construction work for the Beijing Olympics ____ in 2006 .A has
The mayor of Beijing says that all construction work for the Beijing Olympics ____ in 2006 .
A has been completed B has completed c had been completed D will have completed

答案

c had been completed 因为说是过去时,而建设又在之前,因此用过去完成时态