To prevent tracking of browsing history, we can use ……………, …………… or …………… .

A …………… is a dedicated computer or a software system which acts as an intermediary between an end point device, such as a computer, and another server.

Turning your …………… settings to "off" can keep your family's where-about more private.

…………… and …………… can serve in cutting your data charges and are helpful in completing work efficiently.