Read the passage and fill in the blank with one suitable preposition: In the 1950s and 60s, the tower block seemed to offer a (1)___________ to two problems. Firstly, houses built (2)___________ earlier in the century, or even in the nineteenth century, (3)___________ no longer suitable for people to live in. Secondly, an increasing population placed a great deal more (4)___________ on available space. New, vertical tower block, able to house (5)___________ people in a relatively new space than a horizontal street, started t appear. The more people got (6)___________ to living in these structures, the more they world from the heart of communities, or so the thinking went. Initially, these blocks were more popular than the old housing they placed. They were far and away the (7)___________ affordable alternative for many people, and they also offered excellent views. However, these buildings soon became less attractive (8)___________ residents as crime rose. It also became clear that a tower block was (9)___________ like as friendly a place to live in as a traditional street. More often than not, residents in a tower block didn't interact with each other on a regular (10)___________. Although modern tower blocks are making something of a comeback amongst young professionals, they still have a poor reputation in the minds of many people.