5 sentences

1. 祭司在祭坛前祈祷。

   jì​sī zài jì​tán qián qí​dǎo.

   The priest prayed in front of the altar.

   Source: Dong Chinese Dictionary

2. 人们在祭坛上摆放了祭品。

   rén​men zài jì​tán shàng bǎi​fàng le jì​pǐn.

   People placed offerings on the altar.

   Source: Dong Chinese Dictionary

3. 祭坛上摆放着新鲜的供奉。

   jì​tán shàng bǎi​fàng zhe xīn​xiān de gòng​fèng.

   Fresh offerings are placed on the altar.

   Source: Dong Chinese Dictionary

4. 他在祭坛前祈求祖先的灵保佑。

   tā zài jì​tán qián qí​qiú zǔ​xiān de líng bǎo​yòu.

   He prayed for the protection of his ancestors' spirits before the altar.

   Source: Dong Chinese Dictionary

5. 主祭人在祭坛前庄严地唱礼，宣布典礼开始。

   zhǔ​jì​rén zài jì​tán qián zhuāng​yán de chàng​lǐ, xuān​bù diǎn​lǐ kāi​shǐ.

   The officiant solemnly called out the steps of the ritual at the altar, announcing the start of the ceremony.

   Source: Dong Chinese Dictionary