In some cities it is very difficult to have a telephone _____ , and people have to wait a long time before they can get a phone.

        A. assembled      B. installed      C. equipped     D. repaired

In some cities it is very difficult to have a telephone _____ , and people have to wait a long time before they can get a phone.

1. A.
   assembled
2. B.
   installed
3. C.
   equipped
4. D.
   repaired