I hope ____ the little ____ I have been able to do has been of some use.

   A. that; that       B. 不填；by which   C. what; what   D. 不填；with which

I hope ____ the little ____ I have been able to do has been of some use.

1. A.
   that; that
2. B.
   不填；by which
3. C.
   what; what
4. D.
   不填；with which

I hope ____ the little ____ I have been able to do has been of some use.

   A. that; that       B. 不填；by which   C. what; what   D. 不填；with which

 I hope ____ the little ____ I have been able to do has been of some use.

  A. that; that        B. 不填；by which       C. what; what     D. 不填；with which

I hope ____ the little ____ I have been able to do has been of some use.