弄的零清的、懂英语的人进

下面是中大老师给我的作答,请参考:

关系代词that的用法
首先特别注意，that只能用在限定性定语从句中，在非限定性定语从句中永远不能选用
that（限定性和非限定性的区别在于关系代词前是否有“，”，有则为非限定性）, 另外介词后边也不可用that, 而是跟which.
在限定性定语从句中，which和that在代替物的时候，一般可以通用。
The money that (which) is in the wallet is mine.
有些情况下，只宜用that,而不宜用which
i. 先行词是最高级形容词或者它前面有最高级形容词的时候
This is the best that has been used against pollution.（限定性定语从句）
English is the most difficult subject that you will learn during these
years.
ii. 先行词是序数词，或者它前面有一个序数词的时候
He is the last person (that) I want to see.
It is the first American movie of this kind that I’ve ever seen.
iii. 主句已有疑问词who或者which的时候
Which is the bike that you lost?
Who is the woman that was praixed at the meeting?
iv. 先行词既有人又有物，宜用that
Do you know the things and persons that they are talking about?
The bike and its rider that had run over an old man were taken to the police
station.
v. 先行词是all, much, little, something, everything, anyt