3 sentences

1. 我打算在国庆假期去银川旅游。

   wǒ dǎ​suàn zài Guó​qìng jià​qī qù Yín​chuān lǚ​yóu.

   I plan to travel to Yinchuan during the National Day holiday.

   Source: Dong Chinese Dictionary

2. 为了庆祝国庆，学校组织了一场大型文艺汇演。

   wèi​le qìng​zhù Guó​qìng, xué​xiào zǔ​zhī le yī chǎng dà​xíng wén​yì huì​yǎn.

   To celebrate National Day, the school organized a large-scale variety performance.

   Source: Dong Chinese Dictionary

3. 每到国庆，天安门广场都会举行盛大的升旗仪式。

   měi dào Guó​qìng, Tiān'ān​mén guǎng​chǎng dōu huì jǔ​xíng shèng​dà de shēng​qí yí​shì.

   Every National Day, a grand flag-raising ceremony is held at Tiananmen Square.

   Source: Dong Chinese Dictionary