单项选择题
In the talk the speaker thinks that language use is a(n)（）process.
A．individual B．combined C．distinct D．social
单项选择题 The parallel between waltzing and language use lies in（）
单项选择题 Which book is a collection of papers（）
单项选择题 Who has written Cultural Amnesia: America's Future and the Crisis of Memory（）
