问题描述：
英语的单数变复数
Is she his aunt?
是两个人称都变成复数,还是只变主语?
Is she his aunt?
是两个人称都变成复数,还是只变主语?
问题解答：
我来补答展开全文阅读
问题描述：
问题解答：
我来补答