4 sentences

1. 这项工程已经顺利竣工。

   zhè xiàng gōng​chéng yǐ​jīng shùn​lì jùn​gōng.

   This project has been successfully completed.

   Source: Dong Chinese Dictionary

2. 大桥竣工为期不远。

   dà qiáo jùn​gōng wéi​qī bù yuǎn.

   The completion of the bridge is not far off.

   Source: Dong Chinese Dictionary

3. 旬月之间，工程便已宣告竣工。

   xún yuè zhī​jiān, gōng​chéng biàn yǐ xuān​gào jùn​gōng.

   Within a month or so, the project was declared complete.

   Source: Dong Chinese Dictionary

4. 这项工程可望在年底前竣工。

   zhè xiàng gōng​chéng kě​wàng zài nián​dǐ qián jùn​gōng.

   The project is expected to be completed by the end of the year.

   Source: Dong Chinese Dictionary