第1个回答 2014-10-17
we can not deny the truth that the environment is destroyed by human beings.
第2个回答 2014-10-17
we can't deny the fact that the environment is being destroyed by human beings.
第3个回答 2014-10-17
We can't deny the fact that the environment is distoryed by human.本回答被提问者和网友采纳
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