With us [in Britain] the cities pretend they are not really there, until we are well inside them.

With us [in Britain] the cities pretend they are not really there, until we are well inside them.

A....there are no obvious city limits.

B....we find ourselves already in the city without knowing it.

C....cities and the countryside are harmoniously combined into one.

D....we pass through an area which is partly city and partly countryside before entering a city.

正确答案是B