It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.

    It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.

1. A.
   must have taken
2. B.
   will take
3. C.
   won’t take
4. D.
   had taken

     It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.

A. must have taken   B. will take    C. won’t take   D. had taken

    It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.