3 sentences

1. 他在农村搜集了许多民间故事。

   tā zài nóng​cūn sōu​jí le xǔ​duō mín​jiān gù​shi.

   He collected many folk tales in the countryside.

   Source: Dong Chinese Dictionary

2. 这种民间故事在田间广为流传。

   zhè zhǒng mín​jiān gù​shi zài tián​jiān guǎng​wéi liú​chuán.

   This kind of folk tale is widely circulated in the countryside.

   Source: Dong Chinese Dictionary

3. 狸猫换太子是流传已久的民间故事。

   lí māo huàn tài​zǐ shì liú​chuán yǐ jiǔ de mín​jiān gù​shi.

   The story of 'The Civet Cat Exchanged for a Prince' is a long-standing folk legend.

   Source: Dong Chinese Dictionary