3 sentences

1. 过年的时候，家家户户都会燃放爆竹。

   guò​nián de shí​hou, jiā​jiā​hù​hù dōu huì rán​fàng bào​zhú.

   Every household sets off firecrackers during the New Year.

   Source: Dong Chinese Dictionary

2. 节日里，天空中燃放起五彩缤纷的焰火。

   jié​rì lǐ, tiān​kōng zhōng rán​fàng qǐ wǔ​cǎi​bīn​fēn de yàn​huǒ.

   During the festival, colorful fireworks are set off in the sky.

   Source: Dong Chinese Dictionary

3. 过年的时候，人们在广场上燃放烟花庆祝。

   guò​nián de shí​hou, rén​men zài guǎng​chǎng shàng rán​fàng yān​huā qìng​zhù.

   During the New Year, people set off fireworks in the square to celebrate.

   Source: Dong Chinese Dictionary