3 sentences

1. 考试前夕，他特别焦虑。

   kǎo​shì qián​xī, tā tè​bié jiāo​lǜ.

   He was very anxious on the eve of the exam.

   Source: Tatoeba

2. 考试前夕，教室里的气氛非常压抑。

   kǎo​shì qián​xī, jiào​shì lǐ de qì​fēn fēi​cháng yā​yì.

   On the eve of the exam, the atmosphere in the classroom was very oppressive.

   Source: Dong Chinese Dictionary

3. 许多人在新年前夕会和家人一起吃年夜饭。

   xǔ​duō rén zài xīn​nián qián​xī huì hé jiā​rén yī​qǐ chī nián​yè​fàn.

   Many people have New Year's Eve dinner with their families.

   Source: Dong Chinese Dictionary