Matching Pairs Wide Angle 5 Unit 10.1Online version Recognizing and understanding complex sentences with subordinate clauses. by Guadalupe Soto Reyes 1 Sufferers believe that they couldn't suddenly collapse or die 2 Similarly, fear of spiders would have been useful in places 3 In children, monsters and the dark are common triggers, 4 Sufferers are exposed to their particular trigger gradually and over a long period of time, 5 The mechanism behind phobias is a complex area 6 Sufferers' lives become increasingly restricted although these usually resolve before adulthood. where there was a significant risk from dangerous species. that is not yet fully understood. which leads to reduced anxienty. as they choose to stay at home rather than risks the consequences of going out. unless they escape the situation.