If the whole operation __________beforehand, a great deal of time and money would have been lost.
A.was not planned B.has not been planned C.had not been planned D.were not planned正确答案C
If the whole operation __________beforehand, a great deal of time and money would have been lost.
A.was not planned B.has not been planned C.had not been planned D.were not planned正确答案C
