it seem certain that their plane would crash 为什么不这么说 it seem

it seem certain that their plane would crash 为什么不这么说 it seem it seem certaim that their plane would crash 请问 it指的是什么 如果指的 it seemed certain that their plane would crash 联系动词 是系动词吗 后边加形容词 it seem certain that their plane would cra At one point,it seemed certain that their plane would crash. At one point,it seemed certain that their plane would crash It seemed certain that the plane would crash为什么不是certainly呢? 新概念二43课It seemed certain that the plane would crash是不是主语从句?如 中译英,机器不要It would seem as though it was quite possible that t seem+adj和 It seem that 和 seem to do 的用法 It seems that=seem to it often seem to me that