3 sentences

1. 卫兵们紧紧跟随在首长身后。

   wèi​bīng men jǐn​jǐn gēn​suí zài shǒu​zhǎng shēn​hòu.

   The guards followed closely behind the leader.

   Source: Dong Chinese Dictionary

2. 首长正在听取各部门的工作汇报。

   shǒu​zhǎng zhèng​zài tīng​qǔ gè bù​mén de gōng​zuò huì​bào.

   The chief is listening to work reports from various departments.

   Source: Dong Chinese Dictionary

3. 首长在长安街上检阅了受阅部队。

   shǒu​zhǎng zài Cháng'ān​jiē shàng jiǎn yuè le shòu​yuè bù​duì.

   The chief reviewed the troops on Chang'an Avenue.

   Source: Dong Chinese Dictionary