If we _______ now to protect the environment, we'll live to regret it. A. hadn't acted B. haven't ac...
2022-11-15 20:41:08 208次 2014-2015学年四川成都树德协进中学高一10月阶段考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
If we _______ now to protect the environment, we'll live to regret it.
A. hadn't acted B. haven't acted
C. don't act D. won't act
本题链接：
