21.  Pay customers receive priority over free ones.

22.  Rescuers were issued free ones to aid their efforts.

23.  Telling the expensive machines from the free ones is often tricky.

24.  They helped free one of them who had become tangled in his climbing ropes, and gave him something to drink, then continued on their way.

25.  They won two free ones from an earlier play.

26.  Those are the free ones.

27.  You have to buy one adult ticket and you get the other one free.

28.  As part of the legislation, the media were required to match every spot bought by the government with a free one.

29.  As part of that legislation, the media are required to match every spot bought by the government with a free one.

30.  Bulleri made one free throw and Walter Santarossa missed from inside in the dying seconds to let the Greek side take the match.