Please keep me informed       the changes of your address as soon as possible．

       A．of            B．for      C．with        D．by

Please keep me informed ________ the changes of your address as soon as possible．

1. A.
   of
2. B.
   for
3. C.
   with
4. D.
   by

Please keep me informed       the changes of your address as soon as possible．

      A．of         B．for      C．with      D．by