We are confident that the environment ________ by our further efforts to reduce pollution. A. improv...
2022-12-03 23:38:14 25次 2013-2014学年吉林省通化市高三第二次月考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
We are confident that the environment ________ by our
further efforts to reduce pollution.
A.
improves B.
will be improved C. has
improved D. was improved
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