http://digfir-published.macmillanusa.com/video_human_comm_accessible/video_human_comm_accessible_ch239.html
Chapter
239. Speaking extemporaneously
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http://digfir-published.macmillanusa.com/video_human_comm_accessible/video_human_comm_accessible_ch239_dlap.xmlDLAP questions59d764197894d2447c000000