改错：（1）.Tom studyed for the English test last night.(2).She isn't come from Canada.
问题描述：
改错：（1）.Tom studyed for the English test last night.(2).She isn't come from Canada.
(3)It's time having dinner.
答
1 studyed 改为 studied
2 isn't 改为 doesn't
3 having 改为 for
请及时采纳,多谢!