Read the text below. For questions choose the correct answer. 
 
The Cabbies are Smarter than Google Maps
 
London has the most informed cab drivers in the world — and they’ve got the diplomas to prove it. To become a certified taxi operator in London a driver must first pass «the Knowledge» an extraordinarily difficult exam that detailed recall of streets and locations within a radius of London’s Charing Cross railway station. Plus, they have to be fluent in English. Most drivers take three years   the Knowledge and many practice tracing the routes on a bicycle. Drivers must know their directions backwards and forwards which is a task in the maze of London’s one-way streets and blocked-o pedestrian zones.
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