3 sentences

1. 诗人在江边低声吟诵着古诗。

   shī​rén zài jiāng​biān dī​shēng yín sòng zhe gǔ​shī.

   The poet was softly chanting ancient poems by the riverside.

   Source: Dong Chinese Dictionary

2. 这堂国语课，老师讲的是古诗。

   zhè táng Guó​yǔ kè, lǎo​shī jiǎng de shì gǔ​shī.

   In this Chinese class, the teacher taught ancient poetry.

   Source: Dong Chinese Dictionary

3. 他年仅十岁，就能背诵上百首古诗。

   tā nián jǐn shí suì, jiù néng bèi​sòng shàng​bǎi shǒu gǔ​shī.

   At only ten years old, he could recite over a hundred ancient poems.

   Source: Dong Chinese Dictionary