单项选择题

New ways have been found to prevent the river______.

A．not to be polluted
B．against polluting
C．from polluting
D．from being polluted
<上一题 目录 下一题>
热门 试题

单项选择题
Problems like this ______ every day in the factory.
A．raise
B．rise
C．get
D．arise
单项选择题
You can't afford to let the situation get worse. You must take ______ to put it right.
A．decisions
B．directions
C．sides
D．steps
相关试题