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    【题目】We are confident that the environment __________ by our further efforts to reduce pollution.

    A. had been improved

    B. will be improved

    C. is improved

    D. was improved

    【答案】B

    【解析】句意:我们有信心，通过我们进一步减少污染的努力，环境会有所改善。考查时态。题干中的are表明语境是现在，空格处的动作是将来发生的，故B为正确答案

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