3. 当先行词是形容词最高级或被形容词最高级修饰时
例：这是我度过的最美好的时光。 This is the most wonderful time tha
例：他是第一个通过考试的人。
He was the first person that passed the exam.
5. 先行词被the only, the very, the same, the last修饰时
例：这将会是他得到的唯一机会。
This will be the last chance that he can get.
6. 当先行词里同时含有人或物时 例：他们谈论他们记得的有关学校的事和人。
They talked of things and persons that they remembered in the school.
7. 当主句是以who, which开头的特殊疑问句或先行词是 who时 例：哪本是你们昨天从图书馆借的书？ Which is the book that he bought from the library yesterday?
1. 当先行词为anything, everything, nothing等不定代
词时 例：有什么我能为你做的吗? Is there anything that I can do for you? 2. 当先行词为all, any, much, many词时 例：汤姆把事情的全部情况告诉了他的妈妈。 Tom told her mother all that had happened.