Lily may go to the cinema with her mother,or Lucy may go.

问题描述:

Lily may go to the cinema with her mother,or Lucy may go.
____ ____ the twins may go to the cinema with their mother.

Either of
专门用来表示两个中的一个的含义,如果说两个都,就使用both,如果是两个都不,就使用neither.