Question: SL Very few people had long hair then
Please fix the punctuation.
Fixed: [SL: Very few people had long hair then.]

Question: held up Klein as not only the leading research mathematician but also as a magazine of driving power whoses students received personal attention and stimulus and in most cases became themselves productive investigators
Please fix the punctuation.
Fixed: [... held up Klein as not only the leading research mathematician but also as a magazine of driving power, whoses students received personal attention and stimulus, and in most cases became themselves productive investigators.]

Question: In the spring Copenhagen Photo Festival put together two photo trips On land and At sea which sent people off to the corners of the harbor in kayaks and on MeMovers along with skilled photographers and guides
Please fix the punctuation.
Fixed: [In the spring, Copenhagen Photo Festival put together two photo trips, 'On land' and 'At sea', which sent people off to the corners of the harbor in kayaks and on Me-Movers along with skilled photographers and guides.]

Question: So its obvious you will need this tool
Please fix the punctuation.
Fixed:
[So, it's obvious you will need this tool.]