QUESTION: Fix punctuation: Crowding of many people in a small space promotes the spreading of disease
ANS: Crowding of many people in a small space promotes the spreading of disease.

QUESTION: Fix punctuation: After attaching the SD card launch the app from the Applications Folder
ANS: After attaching the SD card, launch the app from the Applications Folder

QUESTION: Fix punctuation: Car From Paris take the Pont de Neuilly toward La Dfense then take the circular boulevard Exit La Dfense 4 central parking lot or Dfense 7 Parking lot Les Quatre Temps Grande Arche PB
ANS: Car : From Paris, take the Pont de Neuilly toward La Defense, then, take the circular boulevard : Exit La Defense 4 a central parking lot or Defense 7 a Parking lot Les Quatre Temps Grande Arche PB.

QUESTION: Fix punctuation: Under questioning from journalists Turnbull gave his definition of a backdoor
ANS:
Under questioning from journalists, Turnbull gave his definition of a backdoor.