THE WORK ON THE NEW BRIDGE WASN’T COMPLETED UNTIL THE END OF 2004.→...

6. - DE DAP AN KTRA K10 BAI SO 4 HK2
DE DAP AN KTRA K10 BAI SO 4 HK2

6. The work on the new bridge wasn’t completed until the end of 2004.

→ It was not until the end of 2004 that the work on the new bridge was completed.