Read and complete the passage with one suitable word. (1,25 pts) In today's world, teenagers rely …………(16) technology more than in the past. This can be a problem …………………….(17) using computers too much may have harmful effect on both their………………….(18) and bodies. They …………..……..(19) watching TV and playing computer games to reading books, perhaps because they don’t have to think and imagine as much. They don’t join clubs or have hobbies and they don't play sports. They sit in front of the computer all the time. They don't get out of the house, even for a walk. They are in a …………(20) that doesn't exist.