The purpose of this study was to explore the use of key questions by counselors (e.g. pretreatment/between-session change questions, exception questions, hypothetical questions, and scaling questions), and the relationships between key questions and clients' responses. Subjects included four clients recruited from a Community Counseling Center in central Taiwan and two counselors trained in SFBC. After counseling, clients were interviewed about their responses to key questions. Audiotapes were used to record data from both the counseling session and the interview. 21 counseling transcripts and 17 interview transcripts were used to analyze and answer the research questions of this study. The results are presented by category of key questions and clients' responses. Further recommedations are proposed.