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    Scientists and students have endless opportunities to study a variety of life in the habitat. 科学家和学生有无限的机会在这块动物栖息地进行各种各样的生物研究. 【查看更多】

     

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     Most of us enjoy fishing, swimming and ____ on the beach, and scientists and students have endless opportunities to study ____ life in the habitat.

       A. have fun, a lot of                 B. having fun, a lot of  

    C. having fun, a variety of            D. have fun, a variety of

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