It is impossible for anyone _____ these photographs before, because Mr Newman had them developed today.

1. A.
   having seen
2. B.
   to have seen
3. C.
   to see
4. D.
   seeing

It is impossible for anyone _____ these photographs before, because Mr. Newman had them developed today.
 A. having seen       B. to have seen     C. to see       D. seeing

It is impossible for anyone ________ these photographs before, because Mr. Newman had them developed today.

[　　]

A．saw　　　　　　　 B．to see

C．to have seen　　　　D．seeing