1、 that引导
That you are coming to London is the best news I have heard this long time.
你将来伦敦是好久以来我听到的最好消息。
2、 whether引导
Whether they would support us was a problem.
他们是否会支持我们还是一个问题。
3、 连接代词引导
Whoever is top from wins the game when two matched players meet. 两强相争勇者胜。
4、 连接副词引导
How this happended is not clear to anyone.
这件事怎样发生的，谁也不清楚。
5、 关系代词型what引导
What struck me was that they have all suffered a lot.
给我很深印象的是他们都受过很多苦。
