3 sentences

1. 他终于有机会登台展示才艺。

   tā zhōng​yú yǒu jī​huì dēng​tái zhǎn​shì cái​yì.

   He finally had the chance to go on stage and show his talent.

   Source: Dong Chinese Dictionary

2. 观众们热烈鼓掌，欢迎主演登台出场。

   guān​zhòng men rè​liè gǔ​zhǎng, huān​yíng zhǔ​yǎn dēng​tái chū​chǎng.

   The audience applauded warmly to welcome the lead actor onto the stage.

   Source: Dong Chinese Dictionary

3. 既然是你第一次登台演出，我一定会去捧场的。

   jì​rán shì nǐ dì​yī cì dēng​tái yǎn​chū, wǒ yī​dìng huì qù pěng​chǎng de.

   Since it's your first time performing on stage, I'll definitely be there to support you.

   Source: Dong Chinese Dictionary