China is known _________ greatly in terms of its cultural values over the past few years.

         A．to change  B．having changed C．changing    D．to have changed

China is known ______ greatly in terms of its cultural values over the past few years.

         A. to change                  B. having changed      C. changing            D. to have changed 

China is known ______ greatly in terms of its cultural values over the past few years.

1. A.
   to change
2. B.
   having changed
3. C.
   changing
4. D.
   to have changed