3 sentences

1. 他是这次文化节的主策划人。

   tā shì zhè cì wén​huà​jié de zhǔ cè​huà​rén.

   He is the lead planner for this cultural festival.

   Source: Dong Chinese Dictionary

2. 为期一周的文化节已接近尾声。

   wéi​qī yī zhōu de wén​huà​jié yǐ jiē​jìn wěi​shēng.

   The week-long cultural festival is drawing to a close.

   Source: Dong Chinese Dictionary

3. 该市正在筹备一年一度的国际文化节。

   gāi shì zhèng​zài chóu​bèi yī nián yī dù de guó​jì wén​huà​jié.

   The city is preparing for its annual international cultural festival.

   Source: Dong Chinese Dictionary