Most people believe that knowledge is power and that having good command of aforeign lang

问题补充：

Most people believe that knowledge is power and that having good command of a

foreign language is of great importance .

A. / , / ,

B. the , a ,

C. / , a ,

D. /, the

答案：

A. / , / ,

B. the , a ,

(答案→)C. / , a ,

D. /, the

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