4 sentences

1. 我们在办公大楼的正门等候经理。

   wǒ​men zài bàn​gōng dà​lóu de zhèng​mén děng​hòu jīng​lǐ.

   We are waiting for the manager at the main entrance of the office building.

   Source: Dong Chinese Dictionary

2. 这栋新落成的办公大楼非常气派。

   zhè dòng xīn luò​chéng de bàn​gōng dà​lóu fēi​cháng qì​pài.

   This newly completed office building is very impressive.

   Source: Dong Chinese Dictionary

3. 进出这栋办公大楼需要出示通行证。

   jìn​chū zhè dòng bàn​gōng dà​lóu xū​yào chū​shì tōng​xíng​zhèng.

   A pass must be shown to enter and exit this office building.

   Source: Dong Chinese Dictionary

4. 他向保安出示了手中的司，随后走进了办公大楼。

   tā xiàng bǎo'ān chū​shì le shǒu​zhōng de sī, suí​hòu zǒu​jìn le bàn​gōng dà​lóu.

   He showed his pass to the security guard and then walked into the office building.

   Source: Dong Chinese Dictionary