91.   But he added that the big question remains how to mold the individual transistors and other components into fully functional integrated circuits.

92.   But he conceded that several basic questions remained unanswered.

93.   But deeper questions remain.

94.   But here too a question remains.

95.   But however or whenever the end comes, the questions remain about what kind of political world we will all inhabit.

96.   But even with inventive solutions, the basic question remains.

97.   But for some of you questions will remain even after your fight for survival and personal comfort have been won.

98.   But he cautioned against assuming that the pipeline was a certainty, noting that questions remain about its engineering requirements and commercial viability.

99.   But he noted that many questions remained that only the courts could resolve.

100.   But her question remained unanswered, as the judge proceeded straight to sentencing.