单选题 How many categories do speech acts fall into according to John Searle?
A. Three. B. Four C. Five D. Six

【正确答案】 C
【答案解析】Searle区分的五类分别是：representatives(阐述类)，directives(指令类)，commissives(承诺类)，expressives(表达类)，declarations(宣告类)。