3 sentences

1. 小李工作非常认真。

   Xiǎo Lǐ gōng​zuò fēi​cháng rèn​zhēn.

   Xiao Li is very serious about his work.

   Source: Dong Chinese Dictionary

2. 今天的会议由小李担任记录。

   jīn​tiān de huì​yì yóu Xiǎo Lǐ dān​rèn jì​lù.

   Xiao Li is in charge of taking the minutes for today's meeting.

   Source: Dong Chinese Dictionary

3. 宿舍管理员正在传呼三楼的小李去接个电话。

   sù​shè guǎn​lǐ​yuán zhèng​zài chuán​hū sān lóu de Xiǎo Lǐ qù jiē gè diàn​huà.

   The dormitory manager is paging Xiao Li on the third floor to take a phone call.

   Source: Dong Chinese Dictionary