21. The new school will be open soon by the local government.

                A                            B -> opened             C                      D

22. This machine have to be repaired.

        A         B          C -> has     D

23. Several people have been bitten on the dog.

          A                        B            C       D-> by

24. A new hospital is being build in our town.

          A                   B          C -->being built            D

25. The man were being questioned by the police then.

             A              B   -> was being              C                D

26. The photos were taken by a digital camera.

         A               B        C   -> being taken           D