3 sentences

1. 愿我们的祖国繁荣昌盛。

   yuàn wǒ​men de zǔ​guó fán​róng chāng shèng.

   May our motherland be prosperous and flourishing.

   Source: Dong Chinese Dictionary

2. 大唐盛世，四海昌晟。

   Dà Táng shèng​shì, sì​hǎi chāng shèng.

   In the golden age of Tang, the world was prosperous.

   Source: Dong Chinese Dictionary

3. 昌先生是我们的新邻居。

   Chāng xiān​sheng shì wǒ​men de xīn lín​jū.

   Mr. Chang is our new neighbor.

   Source: Dong Chinese Dictionary