单项选择题
A.the absence of spontaneity. B.the presence of individual actions. C.the lack of real intentions D.the absence of audience.
A.hide their real intentions. B.voice others’ intentions. C.play double roles on and off stage. D.only imitate other people in life.
A.the manner of language use. B.the topic and content of speech. C.the interactions between speaker and audience. D.the relationship between speaker and audience.