1.   As the investigation dragged on, Azima heard nothing from the federal government.

2.   As the investigation dragged on, petty squabbling broke out between police and prosecutors.

3.   But more important, as investigations drag on, the number of senior government officials involved seems to grow.

4.   But Wiersma said the investigation could drag on for days, and it could be weeks or months before scientists deliver any conclusive findings.

5.   City commissioners have long complained that they are prohibited from making administrative reforms while undercover corruption investigations drag on for years.

6.   It appears that the investigations will drag on for a long time.

7.   The complaint that some independent counsel investigations have dragged on too long also has merit.

8.   The investigation drags on, but not because the facts of the case are in much doubt.

9.   The investigation drags on for months and is starting to take its toll on everyone involved.

10.   The Mabatex investigation has dragged on for two years, with some bizarre twists.