Following the girl, we went into a hall, on ____ walls hung a few pictures of some famous scientists．

1. A.
   its
2. B.
   which
3. C.
   whose
4. D.
   those

Following the girl, we went into a hall, on ____ walls hung a few pictures of some famous scientists．

       A．its    B．which       C．whose      D．those

Following the girl, we went into a hall, on ____ walls hung a few pictures of some famous scientists．

A．its          B．which           C．whose           D．those

Following the girl, we went into a hall, on ____ walls hung a few pictures of some famous scientists．