问题
选择题
31. We should think of ways to stop the waste from the factory _____ our living environment.
A．being polluted
B．polluting
C．from being polluted
D．Polluted
答案
答案：B
根据“废物”与“环境”的关系，“废物”污染“环境”，为主动发出的动作.
搜题请搜索小程序“爱下问搜题”