Question

Neither Jim’s cousins nor he himself ____to America , but _____ of the know the country very well.

1. A.
   have been ;all
2. B.
   have been ; both
3. C.
   has been ;all
4. D.
   has been ;both

Answer 1

C
neither… nor…引导两个主语时，谓语动词的单复数形式要由靠他最近的主语来决定。