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Many people complain of the rapid _____ of modern life.

        A. rate       B. pace       C. speed      D. growth

Many people complain of the rapid _____ of modern life.

   A. rate    B. pace    C. speed    D. growth

 Many people complain of the rapid _____ of modern life.

   A. rate    B. pace    C. speed    D. step

. Many people complain of the rapid _____ of modern life.

   A. rate    B. pace    C. speed    D. growth

Many people complain of the rapid ________ of modern life.  

A.rate                          B.speed  ?                  C.pace                        D.growth