2. 职称英语
  3. Pollution has become a serious problem in almost all the big cities of the wo

Pollution has become a serious problem in almost all the big cities of the wo

游客2024-07-19  54
问题    Pollution has become a serious problem in almost all the big cities of the world. City people are becoming more and more worried about how they can  (11)   pollution. They are also concerned about whether the government is doing enough to  (12)   the e [br]  
选项
答案 creating
解析 因为放在介词without之后，所以用动名词形式。
转载请注明原文地址:https://tihaiku.com/zcyy/3684449.html
相关试题推荐
随机试题
最新回复(0)