如:That we shall be late is certain. 我们要晚了,这是确定无疑的。What he says is not important. 他说的.话并不重要。
How this happened is not clear to anyone. 这件事怎样发生的,谁也不清楚。Which side wins makes no difference to him. 哪边赢他都无所谓。Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。
三、形式主语:有时为了避免句子显得头重脚轻,可用it作形式主语放在句首,而把真正的主语放在句末。如:Its a pity that he didnt come. 很遗憾他没来。Its not yet known what she did. 她做什么还不得而知。