AsatouroperatorspecializingincustomluxurytravelarrangedAviation&InternationalTourismtothecustomerto-anddepartureonscheduledflightsandhotelnightsinGothenburgandStockholm.

As a tour operator specializing in custom luxury travel arranged Aviation & International Tourism to the customer to- and departure on scheduled flights and hotel nights in Gothenburg and Stockholm.
[Q]: [4.Disorientationtotimeandplace]
[A]: [4. Disorientation to time and place]
Problem: Add spaces: Youmustboardatleast30minutesbeforedeparture.

Spaces added: You must board at least 30 minutes before departure.
This text is missing some spaces, please add them: ThisisaskillwhichwillbecomeastrengthforDenmarkandEurope,themorecommonthisbecomes.
This is a skill which will become a strength for Denmark and Europe, the more common this becomes.
input question: Fix spacing: Omega-SpecialSeries311.30.44.51.01.002men'smechanicalwatch

output answer: Omega - Special Series 311.30.44.51.01.002 men's mechanical watch
input question: Fix spacing: ByDecember1936shewasforcedtotakesickleavewhichwassupposedtoendinAugust1937sothatshecouldtakeupteachingagainfortheacademicyear1937-38.

output answer:
By December 1936 she was forced to take sick leave which was supposed to end in August 1937 so that she could take up teaching again for the academic year 1937-38.