时间状语从句 I had been looking for this kind of herb for two mont

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/19 20:26:23

时间状语从句 I had been looking for this kind of herb for two months ___ I found it at last.
选before,为什么不是when呢?

Before+I found it at last.构成了一个时间段,即“我发现它之前”这一段时间；既然是时间段,所以要用完成时态,跟前半句相符；表示“我发现它之前一直在做某事”；
when+I found it at last.是“我发现它的时候”,构成了一个时间点,应该接过去时；

时间状语从句 I had been looking for this kind of herb for two mont I had been looking for the book for two days________I found 这句话有没有时间状语?是哪个?“I had been working on math for the whole aft I've been at this school for over two years .for over two ye what i have been looking for what i`ve been looking for歌词 “What I've Been Looking For” I have been looking for a man. i don't play for anirnal of this kind! have been to 能和for或since引导的时间状语从句连用吗? this is a very boy that i have been looking for如何翻译 this is the very MP3 I am loking for ,___Ihave been looking