________ it is expected that students come to college with the ability to solve most problems in their study by themselves , this is not always the case.

1. A.
   When
2. B.
   While
3. C.
   For
4. D.
   As

________ it is expected that students come to college with the ability to solve most problems in their study by themselves , this is not always the case.

A. When        B. While           C. For            D. As

________ it is expected that students come to college with the ability to solve most problems in their study by themselves , this is not always the case.

   A. When        B. While           C. For            D. As