过去分词是handed in，例如：
1、He has handed in his notice.他递交了辞呈。
2、All eighty opposition members of parliament have handed in their resignation.议会中80名反对党成员全部递交了辞呈。
3、She handed in her resignation and was put on three months' gardening leave.她交上辞呈后，却得到了三个月的园艺假。
