3 sentences

1. 这本小说是他的代表作。

   zhè běn xiǎo​shuō shì tā de dài​biǎo​zuò.

   This novel is his representative work.

   Source: Dong Chinese Dictionary

2. 这座雕塑是这位艺术家的代表作。

   zhè zuò diāo​sù shì zhè wèi yì​shù​jiā de dài​biǎo​zuò.

   This sculpture is the artist's masterpiece.

   Source: Dong Chinese Dictionary

3. 《离骚》是楚辞这种文学体裁的代表作。

   《 Lí Sāo》 shì Chǔ cí zhè zhǒng wén​xué tǐ​cái de dài​biǎo​zuò.

   Li Sao is a representative work of the Chu Ci literary genre.

   Source: Dong Chinese Dictionary