Complete the following passage by choosing A, B, C or D to fill in each blank.

Recent research has (1)____ that a third of people in Britain have not met their (2)____neighbors, and those who know each other (3) _____ speak. Neighbors gossiping over garden fences and in the street was a common (4)_____ in the 1950s, says Dr Carl Chinn, an expert on local communities. Now, however, longer hours spent working at the office, together with the Internet and satellite television, are eroding neighborhood (5)_____ . "Poor neighborhoods once had strong kinship, but now prosperity buys privacy," said Chinn.Professor John Locke, a social scientist at Cambridge University, has analyzed a large (6)_____ of surveys. He found that in America and Britain the amount of time spent in social activity is decreasing. A third of people said they never spoke to their neighbors at (7)_____. Andrew Mayer, 25, a strategy consultant, rents a large apartment in West London, with two flat mates, who work in e – commerce. "We have a family of teachers upstairs and lawyers below, but our contact comes via letters (8)_____ to the communal facilities or complaints that we've not put out our bin bags properly," said Mayer. The (9)_____ of communities can have serious effects. Concerned at the rise in burglaries and (10)_____ of vandalism, the police have relaunched crime prevention schemes such as Neighborhood Watch, call on people who live in the same are to keep an eye on each others' houses and report everything they see which is unusual.