In the past few months the project（ ）held up by the heated discussion about whether it is worthwhile.
A.正确答案Cis
B.was
C.has been
D.had been
In the past few months the project（ ）held up by the heated discussion about whether it is worthwhile.
In the past few months the project（ ）held up by the heated discussion about whether it is worthwhile.
A.正确答案Cis
B.was
C.has been
D.had been
