Many experts hold the view ____ teachers’ development is _____the key to better education lies.

1. A.
   which; where
2. B.
   which; what
3. C.
   that; where
4. D.
   that; which

Many experts hold the view ____ teachers’ development is _____the key to better education lies. 

A. which; where         B. which; what         C. that; where                  D. that; which

 Many experts hold the view _____ teachers’ development is _____ the key to better education lies. 

  A. which; where   B. which; which  C. that; where     D. that; in which

Many experts hold the view ____ teachers’ development is _____the key to better education lies.