Tom goes to school,but little Mary( ).She is only three.

问题描述:

Tom goes to school,but little Mary( ).She is only three.
四个选项:1、isn't 2、won't 3、hasn't 4、doesn't

答案:4 doesn't
go to school 去上学, 主语是little Mary, 第三人称单数否定应该用助动词: doesn't
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!谢谢额!那2、3选项是什么意思?2 won't是一般将来时的否定形式如: He won't go shopping tomorrow.3。 hasn't是现在完成时的否定形式如: He hasn't finish his homework yet.