QUESTION: Fix punctuation: It prevents smart users from hiding the web browsing activities
ANS: It prevents smart users from hiding the web browsing activities.

QUESTION: Fix punctuation: Thomann is located in Treppendorf near Bamberg in Bavaria Germany A Musicians Mekka and home for one of the largest music shops worldwide
ANS: Thomann is located in Treppendorf near Bamberg in Bavaria (Germany) - A Musicians' Mekka and home for one of the largest music shops worldwide.

QUESTION: Fix punctuation: Angkor Cambodia photos of Angkor Bayon photo gallery
ANS: Angkor - Cambodia, photos of Angkor, Bayon - photo gallery

QUESTION: Fix punctuation: Three brilliant singers in more or less constant activity throughout the entire evening make an impessive contribution with their abrupt personality changes and momentary breakdowns
ANS:
Three brilliant singers, in more or less constant activity throughout the entire evening, make an impessive contribution with their abrupt personality changes and momentary breakdowns.