before three days和 three days before的区别 最好老师进before three days 和 three days before我知道意义上应该没有什么区别,只是用在哪的问题,还有就是有一题He said that he had bought that bike( )这里是填那一个呢
问题描述：
before three days和 three days before的区别 最好老师进
before three days 和 three days before我知道意义上应该没有什么区别,只是用在哪的问题,还有就是有一题He said that he had bought that bike( )这里是填那一个呢
答
three days beforebefore three days 结构错误,因为before一般放在时间点前面,比如：before seven,before 1998,the day before yesterday等,但是一般不用于一段时间的前面.段时间 + before 与完成时连用,所以正确答...