21.   A few days after the flight, Alexander sent a letter of complaint by email to Continental.

22.   A major complaint by single travelers is the high price paid to go solo.

23.   Accordingly, he said, boards should react quickly to a complaint by contacting the person making it.

24.   Acting on complaints by Plenel and other journalists, the authorities began an investigation of Prouteau.

25.   After complaints by residents in a nearby neighborhood, the permit was revoked because of technical problems with the application.

26.   After complaints by U.S. senators from Wisconsin, the CFTC investigated.

27.   All the airlines maintain a record of complaints by type, so however they may be addressed, communications pass through the consumer affairs department.

28.   But for all the complaints by businesses and their Congressional champions, it is business groups that typically have sought to have the agency umpire their disputes.

29.   But complaints by critics of a pay raise do not dissuade Don Simon, acting president of Common Cause, a watchdog for ethics in government.

30.   But he neutralizes complaints by sounding self-deprecating almost as often.