填空题. A．casual B．retirement C．to take D．paid E．subjective F．formal G．overseas H．objectives I．standardized J．ever K．qualified L．never M．commercial N．taking O．cause There is virtually no limit to how one can serve community interests, from spending a few hours a week with some charitable organizations to practically full-time work for a social agency. Just as there are opportunities for voluntary service 21 (VSO) for young people before they take up full-time employment, there are opportunities for overseas service for 22 technicians in developing countries. Some people, particularly those who retire early, offer their technical and business skills in countries where there is a special need. So in considering voluntary or 23 community service there are more opportunities than there 24 were when one first began work. Most voluntary organizations have only a small full-time staff, and depend very much on volunteers and part-timers. This means that working relationships are different from those in 25 organizations, and values may be different. In some ways they may seem more 26 and less efficient, but one should not judge them by commercial criteria. The people who work with them do so for different reasons and with different 27 , both personal and organizational. One should not join them expecting to arm them with professional expertise; they must be joined with commitment to the 28 , not business efficiency. Because salaries are small or non-existent, many voluntary bodies offer modest expenses. But many retired people take part in community service for free, simply because they enjoy the work. Many community activities possible in 29 were also possible during one's working life but they are to be undertaken no less seriously for that. Retired people who are just looking for something different or unusual to do should not consider 30 community service.