Cindy doesn't come to parties and sister doesn't e____.

问题描述:

Cindy doesn't come to parties and sister doesn't e____.

either
Cindy没来参加派对,他姐姐也没来.
前句是否定,所以后句的“也”用either.
如果前句是肯定,那么后句的“也”间应该用too.