Question

__________of danger in the street at night, she had to go home, with a friend_________ her.

A．Warned, followed	B．Warning, following
C．Having warned, following	D．Having been warned, following

Answer 1

D

考察非谓语动词，第一空和第二空都是作状语，第一空的warn与后面的逻辑主语之间是被动关系，所以排除BC,第二空的follow与他的逻辑主语 a friend 之间是主动关系，所以选择following，排除A，所以选择D
句意为，已经被警告晚上马路上很危险，她需要有一个朋友跟她一起回家。