As we all know surfing Internet has now become popular means of getting information.A.

问题补充：

As we all know, surfing Internet has now become popular means of getting information.

A. the; the

B. /; the

C. the; a

D. /; /

答案：

A. the; the

B. /; the

(答案→)C. the; a

D. /; /

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