21.   Before construction could begin, the ground below literally had to be washed to remove cyanide and arsenic.

22.   Before construction began, people came by to leave personal items.

23.   Before construction began, however, Nouvel was joined by the renowned American acoustician Russell Johnson.

24.   Before construction could begin, new zoning regulations had to be written for the town of Harrison, which had permitted only office buildings in corporate parks.

25.   Both sides expect construction to begin early next year.

26.   A court ruling in June against the dam on environmental grounds was suspended by an appeals court, allowing construction to begin.

27.   A new subway system opened here this week, only five years after construction began.

28.   A Levitz furniture store and Best Products retail outlet have been razed and construction has begun.

29.   A number of government and media institutions have moved there from London, and construction will begin soon on a hall for the new national assembly.

30.   Actual construction would begin in January.