( B ) for your help, we’d never have been able to finish the project on time.
A. If it were not
B. Had it not been
C. If we had not been
D. Had it not
考查的知识点为条件状语从句省略 if 后的倒装语序。根据句意，这是一个与过去事实相反的虚拟语气，条件状语从句中应使用过去完成时，省略 if 后，应把had 放到主语之前，故选 B。
( B ) for your help, we’d never have been able to finish the project on time.
A. If it were not
B. Had it not been
C. If we had not been
D. Had it not
考查的知识点为条件状语从句省略 if 后的倒装语序。根据句意，这是一个与过去事实相反的虚拟语气，条件状语从句中应使用过去完成时，省略 if 后，应把had 放到主语之前，故选 B。