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    【题目】—I find the environment is getting worse and worse. —Yes, that is _________ we humans go against nature.

    BecauseB. why

    C. that D. How

    【答案】A

    【解析】句意:——我发现环境变得越来越差了。——是的，这是因为我们人类违背自然。why引导表语从句表示结果，because表示原因。

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