With Shanghai World Expo drawing near, volunteers are making use of every minute to ____ their foreign language because language volunteers must pass a written test and an interview. 

A. polish up        B. take up          C. use up               D. make up

With Shanghai World Expo drawing near, volunteers are making use of every minute to ____ their foreign language because language volunteers must pass a written test and an interview.

1. A.
   polish up
2. B.
   take up
3. C.
   use up
4. D.
   make up

With Shanghai World Expo drawing near, volunteers are making use of every minute to ________ their foreign language because language volunteers must pass a written test and an interview.

A. polish up    B. take up   C. put up    D. make up

23. With Shanghai World Expo drawing near, volunteers are making use of every minute to _______ their foreign language because language volunteers must pass a written test and an   interview.

A. polish up                  B. take up                 C. put up                  D. make up

.

 With Shanghai World Expo drawing near, volunteers are making use of every minute to _______ their foreign language because language volunteers must pass a written test and an   interview.

A. polish up       B. take up                 C. put up                  D. make up