Q: and hundreds of voices joined in the chorus:

A: And hundreds of voices joined in the chorus:
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Q: over the same period i have also observed a great enthusiasm justified - as well as a sometimes regular black-hearted attitude by some academic circles.

A: Over the same period I have also observed a great enthusiasm justified - as well as a sometimes regular black-hearted attitude by some academic circles.
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Q: returning to the united states he spent 1982 as a visiting professor at swarthmore college and 1984 at the university of pennsylvania.

A:
Returning to the United States he spent 1982 as a visiting professor at Swarthmore College and 1984 at the University of Pennsylvania.
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