6 sentences

1. 全场观众起立合唱国歌。

   quán chǎng guān​zhòng qǐ​lì hé​chàng guó​gē.

   The whole audience stood up to sing the national anthem together.

   Source: Dong Chinese Dictionary

2. 乐队在庆典上奏响了国歌。

   yuè​duì zài qìng​diǎn shàng zòu​xiǎng le guó​gē.

   The band played the national anthem at the ceremony.

   Source: Dong Chinese Dictionary

3. 国旗在国歌声中徐徐升起。

   guó​qí zài guó​gē shēng zhōng xú​xú shēng​qǐ.

   The national flag rose slowly to the sound of the national anthem.

   Source: Dong Chinese Dictionary

4. 礼兵在国歌声中升起了国旗。

   lǐ​bīng zài guó​gē shēng zhōng shēng​qǐ le guó​qí.

   The honor guards raised the national flag to the sound of the national anthem.

   Source: Dong Chinese Dictionary

5. 总统抵达后何时开始演奏国歌？

   zǒng​tǒng dǐ​dá hòu hé​shí kāi​shǐ yǎn​zòu guó​gē?

   Once the president arrives, when does the anthem begin?

   Source: OpenSubtitles

6. 运动员在颁奖仪式上齐唱国歌。

   yùn​dòng​yuán zài bān​jiǎng yí​shì shàng qí​chàng guó​gē.

   The athletes sang the national anthem together at the award ceremony.

   Source: Dong Chinese Dictionary