Question

he is not an america,_____he has never been to america.

Answer 1

and

语法：

比较and和or

1) 并列结构中,or 通常用于否定句,and用于肯定句.

2) 但有时and 也可用于否定句.请注意其不同特点：

There is no air or water in the moon.

There is no air and no water on the moon.

在否定中并列结构用or 连接,但含有两个否定词的句子实际被看作是肯定结构,因此要用and.