1.   The next is to calibrate the gain, using a pair of Helmholtz coils.

2.   Using a pair of scissors, cut carefully along the dotted lines.

3.   The pair became used to the waves and hoots from passing motorists, trucks and even train drivers as they journeyed to the Mediterranean coast.

4.   Erm, groups of four, so we can use these pairs like this, so we can all talk to each other in a foursome.

5.   Aurelio Arizmendi told reporters that his brother used a pair of scissors to cut the ears off his victims without anesthesia or medication.

6.   Delicately, he used a pair of pliers to open the zipper.

7.   Hikers, climbers and skiers braving lower temperatures can always use another pair of long johns.

8.   I could as easily have used a pair of parentheses, specifically designed for the purpose of graceful interjection of useful explication.

9.   Steve Finley homered for the Padres, who also used a pair of Braves error for the deciding run in the fifth.

10.   The Army researchers used a pair of proteins snipped from the virus to create a DNA vaccine that stimulated immunity without causing disease in the animals.