Neither Jim’s cousins nor he himself to America but of the know the country very well.A

问题补充：

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

A. have been ;all

B. have been ; both

C. has been ;all

D. has been ;both

答案：

A. have been ;all

B. have been ; both

(答案→)C. has been ;all

D. has been ;both

解析：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。