With so many people          （交流、交际）in English every day, it will become more and more important to have a good knowledge of English．

With so many people __________ in English every day, it will become more and more important to have a good ___________ of English.

    A．communicate, knowing                B．communicated, knowledge

    C．communicated, knowing               D．communicating, knowledge

 With so many people ____ in English every day, it will become more and more important to have ____ English.

         A. communicated, good knowledge of

         B. communicating, a good knowledge of

         C. communicating good knowledge

         D. to communicate, a good knowledge at

With so many people __________ in English every day, it will become more and more important to have a good ___________ of English.

1. A.
   communicate, knowing
2. B.
   communicated, knowledge
3. C.
   communicated, knowing
4. D.
   communicating, knowledge