2. 专升本
  3. Some scientists say it is essential that mankind______the amount of air pollution in big cities.

Some scientists say it is essential that mankind______the amount of air pollution in big cities.

admin2007-12-30  62
问题 Some scientists say it is essential that mankind______the amount of air pollution in big cities.
选项 A、reduce
B、reduces
C、reduced
D、must reduce
答案A
解析
转载请注明原文地址:https://www.kaotiyun.com/show/BGLC777K
本试题收录于： 英语题库普高专升本分类
0

英语

普高专升本

相关试题推荐
随机试题
最新回复(0)