问题补充：
of danger in the street at night, she had to go home, with a friend her.
A. Warned ; accompanied
B. Warning; accompanying
C. Having warned; accompanied
D. Having been warned; accompanying
答案：
A. Warned ; accompanied
B. Warning; accompanying
C. Having warned; accompanied
(答案→)D. Having been warned; accompanying
解析：考查时态和with的复合结构，因为是被警告，所以用被动式，动作已经完成，所以用完成时，分词做状语，名词a friend和动词accompany是主谓关系，所以是现在分词形式，所以选D
