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    trees in the past few years. A. A great number of; have been planted B. The number of; has been planted C. A number of; has planted D. A number of; have planted 【查看更多】

     

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    _____ trees _____ in the past few years.

       A. The number of; has been planted                     B.A great number of; have been planted

       C. A great number of; has been planted                D. A great number of; have planted

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