So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.

A. then       B. what    C. that   D. which

. So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.

A. then B. what    C. that   D. which

So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.

A. then     B. what    C. that   D. which

So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.

A. then　　 B. what　　　 C. that　　 D. which

So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.

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

So many uses have been discovered for this wood ____ the supply of white pine is becoming smaller and smaller.

  A. then                     B. what                     C. that                       D. which