PP-1-6 语法问题 -- 我的语法超烂的,很简单的问题都不懂,只好请求各位帮忙解释喽,非常感谢!!

6. _________, domesticated grapes grow in clusters,

  range in color from pale green to black, and contain

  sugar in varying quantities.

      Their botanical classification as berries  

      Although their botanical classification as

         berries  

      Because berries being their botanical

         classification  

      Classified botanically as berries  

答案: D

我选了C, 不明白为什么错了,请能人指点

8. In instrumentalist philosophy, ideas and knowledge arefficeffice" />

    exclusively functional processes: they are of significance

    only _________ instrumental in the development of

    experience.

    as they are    

    are they    

    there are    

    are

答案: A

我选了C,不明白为什么错了    

14. Big-band jazz relies on fixed arrangements, where fficeffice" />

         _________ than one instrument playing some of the

         parts, rather than on improvisation.

            is more    

            whenever more    

     there is more    

        more    

答案: C

我选了D和A, 就是没想到是C, 请指教

15. Because of _________ diversity, seven fficeffice" />

         separate groupings or divisions of algae

         have been established by botanists.

        them    

        so that    

        those    

    their    

答案: D

我选了C,请指教

16. Chromosomes are regarded today as the major fficeffice" />

         carriers of genetic material, _________ of DNA and

         various types of protein.

            consisting    

        as to consist    

    consist        

    which consisting

答案: A

我选了C,请指教