confidence前用什麼冠詞

前邊加冠詞the，例如：

1、This announcement is bound to shake the confidence of the industry.這個宣告必將動搖這一行業的信心。

2、We don't have the confidence that the UN will carry through a sustained program.我們不相信聯合國能夠將一個長久的專案執行到底。

3、He began acting with the confidence of a seasoned performer.作為一名久經歷練的表演者，他滿懷自信地開始演出。