We must apply what we have learned to our daily work because in no case _____ from practice.

We must apply what we have learned to our daily work because in no case_____ from practice.

We must apply what we have learned to our daily work because in no case_____ from practice.

A．should theory separate                   B．theory should be separated

C．theory should separate                   D．should theory be separated

We must apply what we have learned to our daily work because in no case _____ from practice.

       A．should theory separate                B．should theory be separated

       C．theory should separate                D．theory should be separated

We must apply what we have learned to our daily work because in no case_____ from practice.

1. A.
   should theory separate
2. B.
   theory should be separated
3. C.
   theory should separate
4. D.
   should theory be separated