2. 专升本
  3. Most environmental problems exist because adequate measures for preventing them ______ taken in the past.

Most environmental problems exist because adequate measures for preventing them ______ taken in the past.

admin2017-07-18  45
问题 Most environmental problems exist because adequate measures for preventing them ______ taken in the past.
选项 A、was not
B、were not being
C、were not
D、being not
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/8HiC777K
本试题收录于： 英语题库成考专升本分类
0

英语

成考专升本

相关试题推荐
随机试题
最新回复(0)