_______what they have achieved in the past five years, we still have to long way to go.

A. Comparing with    B. Compared with   C. Comparing to   D. Compare to

___what they have achieved in the past five years, we still have a long way to go.

___what they have achieved in the past five years, we still have a long way to go.

1. A.
   Comparing with
2. B.
   Compared with
3. C.
   Comparing to
4. D.
   Compare to

___what they have achieved in the past five years, we still have a long way to go.