3 sentences

1. 红白喜事都要讲究礼节。

   hóng bái xǐ​shì dōu yào jiǎng​jiu lǐ​jié.

   Etiquette must be observed for both weddings and funerals.

   Source: Dong Chinese Dictionary

2. 这件喜事很快就广播开了。

   zhè jiàn xǐ​shì hěn kuài jiù guǎng​bō kāi le.

   This happy news quickly spread far and wide.

   Source: Dong Chinese Dictionary

3. 他们打算下个月办喜事。

   tā​men dǎ​suàn xià gè yuè bàn xǐ​shì.

   They plan to have a wedding next month.

   Source: Dong Chinese Dictionary