With nothing ________ to burn, the fire became weak and finally died out before the firefighters came.

      A . leave       B. leaving           C. left         D. to leave

With nothing ________ to burn, the fire became weak and finally died out before the firefighters came.

1. A.
   leave
2. B.
   leaving
3. C.
   left
4. D.
   to leave

With nothing ________ to burn, the fire became weak and finally died out before the firefighters came.