2 sentences

1. 4号那天发生了什么？

   sì​hào nà tiān fā​shēng le shén​me?

   What happened on the fourth?

   Source: OpenSubtitles

2. 我们4号晚上有音乐聚会。

   wǒ​men sì​hào wǎn​shang yǒu yīn​yuè jù​huì.

   We're having a musical evening on the fourth.

   Source: OpenSubtitles