In some cities, workaholism(废寝忘食工作)is so common that people don't consider it unusual. They accept the lifestyle as【C1】______Government workers in Washington, D. C. , for example, frequently work sixty to seventy hours a week. They don't do this because they have to : they do it because they【C2】______to. Workaholism can be a【C3】______problem. Because true workaholics would rather work than do anything else, they probably have no idea of how to relax. Most of all, they【C4】______to sit and do nothing. The lives of workaholics are usually stressful, and this tension(紧张)and worry can cause【C5】______problems such as heart attacks and stomach diseases. 【C6】______, typical workaholics don't pay much attention to their families. Their marriages may end in【C7】______as they spend little time with their families. Is workaholism【C8】______dangerous? Perhaps not. There are, certainly, people who work【C9】______under stress. Some studies show that many workaholics have great energy and interest in work. They feel work is so pleasurable that they are actually very happy. For most workaholics, work and entertainment are the same thing. Their jobs【C10】______them with a challenge: this keeps them busy and creative.