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It is often ______ that human beings are naturally equipped to speak.

A. said       B. to say     C. saying     D. being said

It is often _____ that human beings are naturally equipped to speak.

A. said          B. to say        C. saying       D. being said學(xué)

It is often _____ that human beings are naturally equipped to speak.

A. said          B. to say        C. saying       D. being said 

It is often________that human beings are naturally equipped to speak.

A.said??? B.to say??? C.saying D.being said

It is often ____ that human beings are naturally equipped to speak. 

  A. said         B. to say           C. saying          D. being said