问题
单项选择题
This sign warns（）ahead.
A.people the danger
B.people of the danger
C.people about the danger
D.the danger
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
This sign warns（）ahead.
A.people the danger
B.people of the danger
C.people about the danger
D.the danger
参考答案：B