那名士兵试图鼓起勇气面对敌人。

The soldier tried to ___summon up the courage to face the enemy.

他竭尽耐心听完了那个长长的故事。

He ___summoned up all his patience and listened to the long story.

我下定决心开始了那个困难的项目。

I ___summoned up my determination and started the difficult project.