Question

______ of danger in the street last night, she had to go home, with a friend following her.

A．To be warned

B．Warned

C．Having warned

D．Warning

Answer 1

B

考查非谓语动词。warned 过去分词作状语，表被动
句意为，被警告这条街晚上很危险，她只能和他的朋友一起回家。