51.   He gave no definitive answers, but he did offer some clues.

52.   He himself has publicly offered no clues.

53.   He offered no clues about his future plans.

54.   He offered no clues as to what had spurred the wave, long after most such theaters had disappeared from the United States, where they were invented.

55.   His compact body offered no clue that he was working on little or no sleep.

56.   His brief public career offers few clues.

57.   History and geography, they suggest, offer other clues.

58.   His novels supply quotations for the chapter headings and their plots offer clues to his own secret story.

59.   His chameleonlike screen performances offer few clues about his real personality.

60.   How they managed the housing lenders may offer clues about how they manage their other affairs.