true的副词形式是什么?

 The island is truly a heaven on earth.

　　那个岛堪称人间天堂。

　　Well, really and truly, things were better than expected.

　　啊，情况的的'`确确比预计的要好。

　　I'm truly sorry that things had to end like this.

　　事情落到这样的结局，我从内心里感到歉疚。