21.   The line is later tested to determine its accurate pound test strength.

22.   The sample will be tested to determine the level of alcohol in his blood at the time of the accident.

23.   The team, using DNA testing to determine the origin of the eggs, was set up to enforce the tough new international standards that now regulate caviar importing.

24.   The trimer is now being tested to determine if it is a human carcinogen.

25.   Then the water was tested to determine whether it had picked up any of the substances, some of which are often used in making faucets themselves.

26.   They are having it tested to determine whether it bears stains from a sexual encounter with the president.

27.   Windward routinely encounters sixth- and seventh-graders from affluent districts who read so poorly that they cannot be tested to determine their reading levels.

28.   You need to let her know, and she can request to have you tested to determine your learning abilities.

29.   Authorities say the letter immediately was placed in plastic bags and sent to an Army lab in Maryland for testing to determine if it contained anthrax.

30.   Blood from the potential victims is flown to a CDC lab in Denver for testing to determine if they have the illness.