我对她独自旅行感到有点不安。

I feel a little ___uneasy about her traveling alone.

不管怎样，因为所有的寂静，我开始感到不安，所以我开始唱歌。

Anyway I was getting ___uneasy because of all that silence, so I began to sing.

他在大考前感到不安。

He felt ___uneasy before the big exam.