短缩关系从句 ( Reduced Relative clauses )

英语文法中有短缩关系从句 ( Reduced Relative clauses )，如果无法掌握其用法，很难明白句子的意思。

The letter which was sent to you was redirected to me.

上面是关系从句 ( Relative clauses )，但它可缩短至

The letter sent to you was redirected to me.

关系从句 ( Relative clauses )的which was 已被删除掉了。

再看看以下的例子：

1． I had my car repaired yesterday.

原文是：I had my car repaired by the mechanic yesterday.

原文中的by the mechanic已被删除掉了

2． Please show me the house rented was not meant for illegal activities.

原文是：Please show me the house which was rented was not meant for illegal activities

原文中的which was 已被删除掉了

3． Any money paid will not be refunded.

原文是: Any money which had been paid will not be refunded.

原文中的which had been 已被删除掉了