send的过去分词是什么

　　例句：

　　1、 Have you sent in your application yet?

　　你把申请书寄去了没有？

　　2、 I sent a copy to the minister for transport

　　我给交通部长发送了一份副本。

　　3、We were sent to another office on the fifth floor.

　　我们被打发到五楼的另一间办公室去了。