21.   The sites all list the forms, schedules and worksheets they support, so users can check them before deciding which way to go.

22.   The station has been shut down more than once, and a sign warned employees to check carefully before opening the door.

23.   Their lockers are checked before practice and the bottles have to be empty.

24.   There is even the option of having your spelling checked before submitting a question.

25.   There are a few things to check before calling the service company.

26.   When Peter Lampione checks the weather before getting dressed each morning, he turns to his home security system.

27.   Afghans say U.S. should have checked before launching raid.

28.   Airlines and airport authorities appealed on radio and TV for passengers to check before heading for Heathrow.

29.   All arriving passengers are tightly checked before being allowed to leave the airport.

30.   As with all airplanes, it had been checked before takeoff, he added.