3 sentences

1. 我自己就是做广告的。

   wǒ​zì​jǐ jiù​shì zuò guǎng​gào de.

   I'm in advertising myself.

   Source: OpenSubtitles

2. 不需要花很多钱来做广告。

   bù​xū​yào huā hěn​duō qián lái zuò guǎng​gào.

   You don’t need to spend a lot of money to advertise.

   Source: CCMatrix

3. 学生们正在设计一个网页来为这件事做广告。

   xué​sheng men zhèng​zài shè​jì yī​ge wǎng​yè lái wèi zhè jiàn shì zuò guǎng​gào.

   The students are designing a web page to advertise the event.

   Source: UM-Corpus: Education