_____ of danger in the street at night,

问题选择题

_____ of danger in the street at night, she had to go home, with a friend ____ her.

A．Warning, following

B．Having warned, following

C．Having been warned, following

D．Warned, followed

答案

答案：C

warn这一动作发生在主句动作had to go之前，应用-ing的完成形式，且与主句的主语存在着被动关系；a friend与follow之间是主动关系。故选C。