send的過去分詞是什麼

例句：

1、 Have you sent in your application yet?

你把申請書寄去了沒有？

2、 I sent a copy to the minister for transport

我給交通部長髮送了一份副本。

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

我們被打發到五樓的另一間辦公室去了。