在面对挑战时，相信自我的价值就会显现出来。

The value of ___believing in yourself becomes clear when facing challenges.

我很难相信他竟然会做出这种事。

I have a hard time ___believing he would do such a thing.

信仰上帝帮助他度过了那段艰难的日子。

___Believing in God helped him get through those tough days.