Direction: In the following passage, some of the words have been left out. First read the passage over and try to understand what it is about. Then fill in the blanks with the help of the alternatives given.

Experts are beginning to suspect that one of the major 296 of crime in modern cities is the actual design of the city. Oscar Newman, a professor of architecture, in his book titled “Defensible Space” has 297 the results of his research on this question. The effect of environment 298 crime is twofold. Prof. Newman’s research shows that some buildings may encourage people not only to interfere but to allow crimes to 299. Crowded apartments in a huge block bring people physically together but isolate them 300. People living in what is 301, one building with a common entry fell isolated within their own apartments. They are unconcerned 302 their neighbours. Some years ago, a girl was stabbed to death 303 a period of half an hour, while hundreds of people living in the block 304 without interfering, without even calling the police. The other obvious effect of the design of buildings is that it affords room for crimes. Hidden nooks and corners, spaces between buildings out of 305 are convenient spots where crimes can be committed without the fear of detection.