The mayor of Nanjing says that all construction work for the school（ ）by 2020.
A.正确答案Bhas been completed
B.will have been completed
C.has completed
D.will have completed
The mayor of Nanjing says that all construction work for the school（ ）by 2020.
The mayor of Nanjing says that all construction work for the school（ ）by 2020.
A.正确答案Bhas been completed
B.will have been completed
C.has completed
D.will have completed
