Those harboring doubts about micro-blogging should now be convinced that micro blogs can play an ineffective 【1】______ role in mobilizing society for a just course. Today, micro blogs have become an important new medium for people obtain news, express their opinions, 【2】______ engage in social networking and participate in public campaigns. For journalists, micro blogs are a source of news and a platform. for spreading news. Furthermore, the increasing 【3】______ popularity of micro blogs has become a double-edge sword. 【4】______ One of the top 10 phony news stories last year first appeared via micro blog, correctly announcing the death of 【5】______ legendary kung fu novel writer Louis Cha. Other micro blog 【6】______ message falsely claimed contemporary online literature was replaced modern literary works in school textbooks. 【7】______ The sad thing is unusual mainstream news media face 【8】______ the danger of losing sight of their own news values and ethics. They often sacrifice their own news and reporting agendas and devote their resources to follow up the bogus 【9】______ claims of micro blogs as 'potential' news leads. As professional journalists, they should welcome citizens joining us in reporting news. However, they should 【10】______ not shirk their responsibility in making sure they get right all the news elements: who, what, when, where, why and how. (31)