it was certain that our football team would win the game...用would说明是过去将来时吗

it seemed certain that 造句it is certain that. It is certain that he will come.这个句子改为was certain that he would come可以吗第二个句子,It was certain that our football team would win the game.这个句子改为is certain that our football team will win the game 还是有含有虚 It's certain that it's sure that区别,语法, 英语翻译i might have set it to tell myself that somebody was tocall me at a certain time it was certain that our football team would win the game...用would说明是过去将来时吗 it seemed certain that their plane would crash这里可以去掉 certain that It was a question of making sure that certain needs were addressed ,notably in the pensions area.翻译,并语法解释. was it all that It was you that That was it歌词 找出下列句子中的主语从句及其引导词,并且指出引导词是否充当成分,充当什么成分.1.That we shall be late is certain.2.That the driver could not control his car was obvious3.It is certain that we shall be late.4.It was ob That she will come is almost certain.可不可以改成She will come that is almost certain.呢还是It is almost certain that she will come. it seems certain that和it seems sure that都有吗,区别呢? It is clear that与it is certain that的区别 为什么不能用it is sure that,而可以it is certain that It is certain whether he will win the game.(whether应改为that)It isn't certain that he will win the game.(that应改为whether) 为什么在it's certain that/to do sth中不能把certain换成sure?要具体解释,有赏!