Using coordination:I don’t know the answers to these questions.

Using coordination:
I don’t know the answers to these questions. He doesn’t know either.
【正确答案】：Nether I nor he knows the answers to these questions.
【题目解析】：由or，either…or…，neither…nor…，not only…but also…，not…but…等连接两个名词或代词做主语时，根据就近原则决定谓语动词形式。