必中人林冲指什么生肖:The man sitting next to me on the plane was very nervous.。。。。

来源：百度文库 编辑：高校问答 时间：2024/04/28 13:21:47
It was his first flight.He ____(never,fly) before.
为什么用had never flown 不用has never flown

had never flown 是过去完成时
也就是"过去的过去",相对于
it was的时候,再住前,不能用现在完成时.
如果是it is ,用has never flown

before是过去时,所以用had

had never fiown不是现在动词

本来叙述的就是过去的事，整个态都是过去的，没坐过飞机是过去的过去，所以……

The man sitting next to me on the plane was very nervous.。。。。 do you know the man sitting behind bill? I started to _____ to the man sitting beside me the old man is sitting in a chair,-----pipe in ----mouth. sitting by the side of the road the next best thing The Girl Next Door The next sunday THE NEXT MORNING next 和the next的区别