搜狗做题网这句话里面有没有语法错误?都在哪里?应该怎么改?
来源：学生作业帮 编辑：搜狗做题网作业帮 分类：英语作业 时间：2024/04/30 12:56:07
这句话里面有没有语法错误?都在哪里?应该怎么改?
By the time Dad and Mom receive this package,which we are mailing today,
we shall have returned home.
By the time Dad and Mom receive this package,which we are mailing today,
we shall have returned home.
By the time Dad and Mom received this package which we are mailing today,
we shall have returned home.
"which we are mailing today"作为非限制性定语从句来修饰package.所以逗号
去掉.
by the time出现,主句一般用过去完成时,从句用过去时.
表示事情发生在从句之前.
we shall have returned home.
"which we are mailing today"作为非限制性定语从句来修饰package.所以逗号
去掉.
by the time出现,主句一般用过去完成时,从句用过去时.
表示事情发生在从句之前.