4 sentences

1. 人们在清明节祭祀祖先。

   rén​men zài Qīng​míng​jié jì​sì zǔ​xiān.

   People offer sacrifices to their ancestors during the Qingming Festival.

   Source: Dong Chinese Dictionary

2. 他每年清明节都会去扫墓。

   tā měi nián Qīng​míng​jié dōu huì qù sǎo mù.

   He goes to sweep the ancestral graves every year during the Qingming Festival.

   Source: Dong Chinese Dictionary

3. 祭拜祖先是清明节的重要传统。

   jì​bài zǔ​xiān shì Qīng​míng​jié de zhòng​yào chuán​tǒng.

   Worshipping ancestors is an important tradition of the Qingming Festival.

   Source: Dong Chinese Dictionary

4. 清明节期间，很多民众前往烈士陵园祭扫。

   Qīng​míng​jié qī​jiān, hěn​duō mín​zhòng qián​wǎng liè​shì líng​yuán jì​sǎo.

   During the Qingming Festival, many people go to martyrs' cemeteries to pay their respects.

   Source: Dong Chinese Dictionary