A.It is an encyclopedia about London streets.
B.It is an exam would-be cabbies must pass.
C.It is a navigation between the landmarks.
D.It is a license for the cabby profession.
A.the expense to spend luxurious holidays in Spain
B.the waste of time to remember London streets
C.the efforts to grasp the transportation knowledge
D.the hardship of living as a London taxi driver
A.It has a privilege to use smartphone platform.
B.It provides illegal service in American cities.
C.It may be completely suspended in the near future.
D.It has met some obstacle in its fast booming.