Just because a person perceives that an opportunity exists does not mean that it is real. Perhaps the potential number of individuals 1(interest) in purchasing the proposed product or service is too small.
  • 1、
【正确答案】 1、interested    
【答案解析】 根据句子逻辑关系，interest在句中作individuals一词的后置定语，要用过去分词形式interested。