单项选择题

College students in this city have set up "the Cleaner Air Society" to help urban citizens become aware of the _________ to our environment.

A．conditions
B．situations
C．dangers
D．threats
<上一题 目录 下一题>
热门 试题

单项选择题
You must _________ yourself or they will continue to bully you, so you will go on living in disgrace.
A．assess
B．assert
C．maintain
D．promote
单项选择题
I'm sorry to inform you that you application has been declined. Our manager thought you were not _________ for the post.
A．legible
B．eligible
C．valid
D．literate
相关试题