21.   A. This is a common problem, although it can be quite unnerving if you hear it for the first time in the middle of the night.

22.   Academic Serialists and avant-garde experimentalists sneered, but the conservative mainstream liked what it heard, at least for a time.

23.   After hearing nothing for more than a week, Bordick took the initiative and called Ripken, sharing a congenial conversation.

24.   After family members were allowed to hear it for a second time, she said she began to feel some sense of peace.

25.   After having heard for many years about the festival, I went with my wife, Sheryl, and our three children from Tokyo, where we were living.

26.   After hearing nothing for at least three days, you should call him back.

27.   All you have to do to hear it for yourself is step over to the wall there and put on one of the headphone sets.

28.   Burnett, the daughter of an Arkansas cotton farmer, had a grit behind her soft voice and courteous manner, and she wanted to hear for herself.

29.   But actually hearing it for the first time, on the radio, was another matter.

30.   But Amanda Ream, a sophomore who is white, said she had a different view of Mr. Muhammad after hearing him for herself.