问题
单项选择题
Virtually every theory has been concerned with either the structure or the function of the language.
A．Vertically
B．Almost
C．Actually
D．Finally
答案
参考答案：C
解析：[分析] 副词辨析 Virtually表：事实上，实质上；而选项A．Vertically垂直地；B．Almost几乎，差不多；C．Actually实际上，事实上，竟然；D．Finally最后，终于，决定性地；因此C为答案。