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______the two designs, and you will find what problem there is with yours.

         A. Comparing            B. Compared                    C. To compare          D. Compare

______the two designs, and you will find what problem there is with yours.

              A. Comparing        B. Compared               C. To compare              D. Compare

_______ the two designs, and you will find what problem there is with yours.

   A. Comparing                 B. Compared                C. To compare                     D. Compare

 ________ the two designs, and you will find what problem there is with yours.

   A. Comparing                 B. Compared                C. To compare                     D. Compare

 ________ the two designs, and you will find what problem there is with yours.

   A. Comparing         B. Compared         C. To compare           D. Compare

________ the two designs, and you will find what problem there is with yours.

______the two designs ,and you will find what problem there is with yours.

       A．Comparing      B．Compared C．To compare      D．Compare

      the two designs ,and you will find what problem there is with yours.

       A．Comparing      B．Compared C．To compare      D．Compare