. _______ for your help, we'd never have been able to get over the difficulties.
A.Had it not B.If it were not C.Had it not been D.It we had not been正确答案C
. _______ for your help, we'd never have been able to get over the difficulties.
A.Had it not B.If it were not C.Had it not been D.It we had not been正确答案C