单选题
New ways have been found to prevent the river ______.
A、
not to be polluted
B、
against polluting
C、
from polluting
D、
from being polluted
【正确答案】
D
【答案解析】
prevent sth from being pp 防止……被……；注意用被动，因为“the river being polluted”
提交答案
关闭