帮我看看这个 英语句子 是否正确

题目

帮我看看这个 英语句子 是否正确
many people are beginning to believe that improving the relationship between men and nature can help us have a better life and development.
and nature can help us 这个之间是不是得加个 引导词呢
wastes water have been pouring into the river over the past years .这句话 是否正确呢

答案

believe 用的不好,可以考虑换一个词
后一句不对,如果用废水做主语那应该用被动